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Acanthus hungaricus (Bear's Breeches): Architectural spires of purple/white flowers over large, dark green deeply divided leaves. Best in sun or light shade.

Acanthus mollis (Bear's Breeches): Architectural spires of purple/white flowers over large, dark green deeply divided leaves. Best in sun or light shade. [Collect Only]

Achillea 'Forncett Fletton': Flat heads of warm, brick red flowers with gold centres above ferny foliage. Great in sunny borders in light soil. To 75cm [Collect Only]

Achillea 'Martina': A superb variety with long lasting lemon yellow flowerheads, fading slowly to cream. Ferny green foliage. To 75cm

Achillea 'Moonshine': Very popular variety with large bright yellow/gold flowerheads above silvery green ferny foliage. Height to 80cm

Achillea 'Paprika': As its name suggests, rich, dark orange flowerheads above ferny green foliage. Great in full sun and light soils. Height to 75cm

Achillea 'Summerwine': Bright, beaujolais wine red flat flowerheads over ferny foliage. Perfect for pollinators

Achillea 'Terracotta': A lovely, multi-hued variety opening warm orange and fading slowly to a rich cream. Full sun and light soil. To 80cm

Achillea 'Walther Funcke': Rich red flat flowerheads with gold centres over ferny green foliage. Great in light soils and sunny spots. [Collect Only]

Achillea chrysocoma 'Grandiflora': A real statuesque perennial with tall stems of huge creamy white flowers. Finely divided leaves. Prefers a sunny spot. Hardy. Up to 1.8m. [Collect Only]

Achillea filipendulina 'Gold Plate': Statuesque achillea with huge, flat gold flower heads above upright ferny foliage. A statement plant for dry, sunny borders.

Achillea millefolium 'Cerise Queen' (Yarrow): Flat umbels of tightly clustered deep pink flowers in summer and autumn. Height 60cm

Achillea millefolium 'Red Beauty': Superb crimson red flowers over ferny green foliage. Long flowering from late June to Sept. Hardy. Height to 60cm. [Collect Only]

Achillea millefolium 'Red Velvet': Superb ruby red flowers over ferny green foliage. Doesn't fade with age. In flower late June to Sept. Height to 80cm. [Collect Only]

Achillea millefolium 'Tricolor': Unusual multi-coloured flowers of yellow, orange and pinky-red over ferny green foliage. Long flowering. Hardy. Height to 60cm.

Aconitum carmichaelii 'Arendsii' (Monkshood): Tall spires of hooded rich blue flowers in late summer. Attractive foliage spring to autumn. To 1.5m. Hardy. [Collect Only]

Aconitum carmichaelii 'Cloudy' (PBR): Tall spires of hooded white flowers with smudges of pale purple in late summer. Attractive foliage spring to autumn. To 1.5m. Hardy. [Collect Only]

Aconitum napellus 'Album' (White Monkshood): White hooded flowers over finely divided frondy foliage. [Collect Only]

Aconitum napellus 'Rubellum' (Monkshood): Pale pink hooded flowers on sturdy spikes above finely divided foliage. Flowering mid to late summer. Hardy. Up to 1m. [Collect Only]

Aconitum napellus 'Schneewittchen' (Monkshood): An excellent pure white variety with white hooded flowers on sturdy spikes above finely divided foliage. Hardy. Up to 1.2m. [Collect Only]

Aconitum x cammarum 'Stainless Steel': Elegant, light steely grey hooded flowers over finely divided ferny foliage. Good in shade if not too dry. To 1m. [Collect Only]

Actaea japonica 'Cheju-do' (Bugbane. Cimicifuga): A compact variety with attractive dissected dark green foliage and spikes of white flowers. Best in part shadeHardy. Up to 60cm. [Collect Only]

Actaea pachypoda (Doll's eye bugbane): Grown mainly for its pure white berries in autumn, each with a black 'eye' on a red stalk.

Actaea rubra (Red baneberry): Clusters of white flowers in spring, followed by shiny red berries in autumn - its chief attraction.

Actaea simplex 'Carbonella' (Bugbane. Cimicifuga): Like Actaea 'Brunette, but shorter. Sweetly scented flower spike in late summer [Collect Only]

Actaea simplex 'Chocoholic' (Bugbane. Cimicifuga): Very dark, almost feathery foliage. Sweetly scented pink flower spikes in late summer. A short variety Height to 75cm [Collect Only]

Agastache 'After Eight' (Hyssop): Bright blue flower spikes above dark green aromatic foliage. Very attractive to bees and butterflies. Hardy. Up to 50cm.

Agastache 'Blue Boa' (PBR): Excellent new form of Agastache with much fatter spikes of vibrant purple-blue flowers, with aromatic foliage. Hardy. Up to 80cm.

Agastache 'Violet Vision' (PBR): New variety of Agastache with violet pink flower spikes above aromatic green foliage, scented of aniseed. Hardy. Up to 60cm.

Ajuga reptans (Bugle): Superb ground cover plant with purplish green leaves and blue flower spikes in summer. Very attractive to bees

Ajuga reptans 'Alba' (Bugle, white flowered): Superb ground cover plant with bright green leaves and white flower spikes in summer. Very attractive to bees [Collect Only]

Ajuga reptans 'Black Scallop' (PBR) (Bugle): Shiny, darkest purple-red leaves look near black. Short spikes of blue flowers in summer.

Ajuga reptans 'Rosea' (Bugle, pink flowered): Superb ground cover plant with bright green leaves and pink flower spikes in summer. Very attractive to bees [Collect Only]

Alchemilla alpina (Lady's mantle): A miniature Alchemilla with dainty, 5 lobed leaves and a froth of tiny green flowers in spring

Alchemilla erythropoda (Alpine Lady's Mantle): Compact form of familiar Lady's Mantle.

Alchemilla mollis (Lady's mantle): Bright green soft leaves and a froth of acid yellow/green flowers in summer. Very easy for ground cover

Amsonia tabernaemontana (Blue dogbane): Starry blue flowers on strong stems with willowy green leaves. Hardy. Up to 90cm. [Collect Only]

Anemone 'Coupe d'Argent' (Japanese Anemone 'Silver Cup'): Semi-double, ruffled white flowers on tall wiry stems in late summer and autumn. Dark vine-like leaves. Good in most soils. [Collect Only]

Anemone 'Wild Swan': Pure white flowers with a blueish purple reverse. Flowers on and off all summer.

Anemone filisecta: Clump forming perennial with green ferny foliage and upright umbels of white single flowers. Up to 30cm. Hardy

Anemone leveillei: Delicate white daisy-like flowers with lovely purple anthers and lilac backed. Foliage forms a mound of divided green leaves. Up to 45cm.

Anemone lipsiensis: Gorgeous lemon-yellow flowers over a carpet of filigree foliage in spring.

Anemone nemorosa (Wood anemone): Low growing, pure white anemone which flowers in early spring

Anemone nemorosa 'Robinsoniana' (Wood anemone): Delicate lavender blue flowers in Spring above clumps of deeply divided foliage. Hardy. Up to 20cm. Dormant in the summer. AGM.

Anemone rupicola 'Elfin Swan' (PBR): Pure white flowers with lavender reverse. More compact than 'Wild Swan'. Prefers a rich soil in part shade. Hardy. To 50cm. [Collect Only]

Anemone sylvestris (Snowdrop anemone): Large pure white flowers over a mound of green ferny foliage.

Anemone x hybrida 'Honorine Jobert' (Japanese Anemone 'Honorine Jobert'): Large white flowers flowering from late summer to autumn.

Anemone x hybrida 'September Charm' (Japanese Anemone or Wind Flower): Two-tone dark rose and shell pink flowers on tall stems in late summer.

Anemone x lesseri (Rose windflower): Reddish pink flowers above divided green ferny foliage. A very attractive plant. Flowering in early summer. Hardy. Up to 20cm.

Anemonella thalictroides (Mayflower): Gorgeous little white flowers over dainty foliage.

Angelica gigas: Magnificent plant with huge domes of purple flowers in mid summer, turning to attractive seed heads [Collect Only]

Antennaria dioica 'Rubra': Small rosettes of spoon shaped leaves and spikes of pink fluffy flowers. Good in alpine troughs or rock gardens. Up to 20cm.

Anthemis 'Susanna Mitchell': Creamy yellow flowers over silvery-green foliage. Can be in flower from late spring onwards. [Collect Only]

Anthemis tinctoria 'Lemon Ice': Creamy daisy flowers with a deep yellow centre. Ferny greyish green foliage. Excellent in sunny, dryish spots. Up to 45cm

Anthemis tinctoria 'Sauce Hollandaise': Lemon daisy flowers with a deep yellow centre.

Anthriscus sylvestris 'Ravenswing' (Purple cow parsley): A dark leaved form of the common cow parsley

Aquilegia 'Crimson Star' (Granny's bonnet. Columbine): Two-toned flowers with red sepals, long spurs and white inner petals, held on tall stems above attractive ferny foliage. Hardy. Up to 90cm.

Aquilegia 'Kristall' (Granny's bonnet. Columbine): Pure white flowered Aquilegia, with long spurs on upright stems above ferny foliage. Prefers some shade. Hardy. Up to 60cm.

Aquilegia alpina (Granny's bonnet. Columbine): Lovely delicate bonnet shaped blue flowers in the spring, held on upright stems above blue-green ferny foliage. Hardy. Up to 80cm.

Aquilegia chrysantha 'Yellow Queen' (Granny's bonnet. Columbine): Bright yellow, fragrant flowers with long spurs on tall stems above ferny foliage. Prefers some shade. Hardy. Up to 90cm. AGM.

Aquilegia McKana Hybrids (Granny's bonnet. Columbine): Large trumpet flowers with long spurs in lemon yellow and other pastel colours in late spring. Attractive to bees/insects

Aquilegia vulgaris 'Black Barlow' (Granny's bonnet. Columbine): Darkest red, almost black, double flowers in spring.

Aquilegia vulgaris 'White Barlow' (Granny's bonnet. Columbine): Pure white, double flowers in spring. [Collect Only]

Aquilegia vulgaris var. stellata 'Ruby Port' (Granny's bonnet. Columbine): Nodding, double, wine-red flowerheads on slender stems in late spring. [Collect Only]

Arum italicum subsp. italicum 'Marmoratum' (Arum italicum 'Pictum'): Large arrow shaped green leaves with white markings in winter, spikes of bright orange berries in autumn

Aruncus 'Guinea Fowl' (Goats beard): A compact form with ferny green foliage and frothy panicles of white flowers in mid-summer.

Aruncus aethusifolius (Goat's beard): Lovely fresh ferny foliage which turn golden in the autumn. Spikes of creamy white flowers in early summer. Hardy. Up to 50cm. AGM.

Aruncus dioicus (Goatsbeard): Stately plant for larger borders or feature plant. Deeply divided foliage, frothy panicles of creamy white flowers in summer. [Collect Only]

Asarum europaeum (Wild ginger): Glossy, deep green round leaves make the perfect carpet in shady areas.

Asclepias tuberosa (Butterfly flower): Vibrant bright orange flowers in summer and autumn, followed by fruit. Loved by butterflies. Prefers a sheltered spot. Up to 80cm.

Asphodelus aestivus (Summer asphodel): Tall, strong spikes of white flowers in early summer.

Aster 'Andenken an Alma Potschke': Large sprays of bright pink double flowers in autumn. Very reliable, easy to grow perennial.

Aster 'Little Carlow' (Also Symphyotrichum 'Little Carlow'): Large sprays of small purplish blue flowers in autumn. Very reliable, easy to grow perennial.

Aster ageratoides 'Ashvi' (Aster. Full botanical name Aster trifoliatus subsp. ageratoides): White flowers in a neat mound over a very long season - July to November

Aster amellus 'Veilchenkonigin' (Italian Aster): Aster with large violet-blue flowers in the autumn and dark-green foliage. Compact. Bee-friendly. Hardy. Up to 40cm. AGM.

Aster ericoides 'Pink Cloud' (Symphyotrichum ericoides 'Pink Cloud'): Clouds of pink daisy flowers with a yellow centre, slender leaves. Long flowering and mildew-resistant. Hardy. Up to 80cm. AGM

Aster laevis 'Arcturus': Clouds of lilac/purple flowers over almost black stems. Hardy and reliable late summer/autumn flowerer.

Aster macrophyllus 'Twilight' (Also known as Eurybia x herveyi): Lavender-blue flowers with a yellow centre in late summer. Mildew-resistant foliage. [Collect Only]

Aster novae-angliae 'Harrington's Pink' (Michaelmas Daisy): Fully double, almost fluffy pink flowers in late summer/early autumn.

Aster novae-belgii 'Winston Churchill' (Also known as Symphyotrichum novi-belgii 'Winston Churchill'): Taller-flowering Aster with dark-pink semi-double flowers and yellow centre in the autumn. Bee-friendly. Hardy. Up to 80cm

Aster x frikartii 'Monch' (Michaelmas Daisy.): Soft lavender blue flowers in late summer.

Aster x frikartii 'Wunder von Stafa': Long-flowering Aster with light violet-blue flowers in autumn and dark foliage. Mildew-resistant. Bee-friendly. Hardy. Up to 70cm. AGM.

Astilbe 'Amethyst': Large, upright panicles of lilac-purple flowers in summer over green ferny foliage. Excellent for damp or shady spots. Hardy. Up to 80cm. [Collect Only]

Astilbe 'Delft Lace ': Upright plumes of pink flowers on deep red stems in mid-summer. Lacy blue-green foliage. Excellent for damp or shady spots. [Collect Only]

Astilbe 'Ellie': Large, upright panicles of white flowers in mid-summer over dark green ferny foliage. Excellent for damp or shady spots. [Collect Only]

Astilbe 'Fanal': Large, upright panicles of deep red flowers in summer over dark green ferny foliage. Excellent for damp or shady spots. [Collect Only]

Astilbe 'Montgomery': Large, upright panicles of cherry red flowers in summer over dark green ferny foliage. Prefers a moist soil. Hardy. Up to 60cm. [Collect Only]

Astilble 'Look at Me': Stunning new variety with fluffy pink flowers and red flower stalks. [Collect Only]

Astrantia 'Buckland' (Masterwort, Hattie's pincushion,): Palest pink pincushion flowers over a long season in summer. [Collect Only]

Astrantia major 'Gill Richardson': Superb variety with cherry red flowers held above strong green foliage. Repeat flowers readily if dead-headed.

Astrantia major 'Star of Fire' (Masterwort): One of the best new red Astrantias I've seen. Deep red bracts tipped with black. [Collect Only]

Astrantia maxima (Masterwort): Two-tone pink/green, long-lasting, starry flowers. [Collect Only]

Bellis perennis (pink) (Bellis daisy): Robust perennial with rosettes of spoon shaped leaves with double, pink flowers

Bellis perennis (red) (Bellis daisy): Robust perennial with rosettes of spoon shaped leaves with double, red flowers. Good in containers and edging borders.

Bellis perennis (white) (Bellis daisy): Robust perennial with rosettes of spoon shaped leaves with double, white flowers. Good in containers and edging borders.

Bergenia 'Bach' (Elephant's ears 'Bach'): Glossy, dark green foliage. Icy pink flowers with reddish stalks in late winter/spring. Neat and tidy plant.

Bergenia 'Bressingham White' (Elephant's ears.): Large evergreen leaves turn reddish hues in winter. Clusters of white, pink tinged flowers in late winter,

Bergenia 'Ice Queen' (Elephant Ears 'Ice Queen'): Very tidy, evergreen plant with bright green, red edged leaves and palest green flowers in winter. [Collect Only]

Bergenia 'Overture' (Elephant Ears): Vibrant magenta flowers over deep green leaves that turn claret in winter.

Bergenia 'Vinterglod' (Winterglow) (Elephant's ears): Dark, glossy green leaves, turning red in the winter. Dark red stems with dark pink bell-shaped flowers in Spring. Great ground-cover. [Collect Only]

Bergenia cordifolia (Elephant's ears.): Our in-house variety with huge green leaves which have lovely pink tints in winter and pink flowers in early spring [Collect Only]

Bletilla striata alba (Hyacinth orchid): White orchid flowers on arching stems and sword-like leaves in late spring. Frost-hardy, so needs a sheltered spot. Up to 20cm.

Bouteloua gracilis (Mosquito grass): A low growing tufted grass with blue-green leaves.Unusual bent and flattened flowers and seed heads. Hardy. Up to 30cm. [Collect Only]

Brunnera macrophylla (Siberian bugloss): Heart shaped green leaves, with sprays of palest blue flowers in spring. Good in shade. [Collect Only]

Brunnera macrophylla 'Alexander's Great' (Siberian bugloss/Heartleaf): Statement foliage plant for shade. Large, heart-shaped, silver leaves. Light-blue forget-me-not-like flowers in Spring. Hardy. Up to 40cm.

Brunnera macrophylla 'Betty Bowring' (Siberian bugloss/Heartleaf): Pure white forget-me-not flowers over heat-shaped green leaves.

Brunnera macrophylla 'Hadspen Cream' (Siberian bugloss/Heartleaf): Large, heartshaped green leaves with wide cream margin. Sprays of forget-me-not blue flowers in spring. [Collect Only]

Brunnera macrophylla 'Jack Frost' (PBR) (Siberian bugloss/Heartleaf): Large, heartshaped silver leaves with green veins and leaf edges. Sprays of forget-me-not blue flowers in spring. Superb shade-loving plant.

Brunnera macrophylla 'Jack's Gold' (Siberian bugloss/Heartleaf): A sport of 'Jack Frost' with golden heart-shaped leaves which fade to silver. Small blue forget-me-not-like flowers in Spring. Hardy. Up to 40cm.

Brunnera macrophylla 'Looking Glass' (PBR) (Siberian bugloss/Heartleaf): Almost entirely silver leaves, faint green veins. Sprays of forget-me-not blue flowers in spring. Excellent in shade

Brunnera macrophylla 'Mr Morse' (Bugloss 'Mr Morse'): Heart shaped leaves with silver veins and a froth of tiny white flowers in spring. [Collect Only]

Brunnera macrophylla 'Silver Wings' (Siberian bugloss/Heartleaf): A fine shade-loving plant. Silver leaves with green veins and a wide green leaf margin. Sprays of forget-me-not blue flowers in spring. [Collect Only]

Brunnera macrophylla 'Variegata' (Siberian bugloss/Heartleaf): Large, heartshaped leaves with bold variegation. Sprays of forget-me-not blue flowers in spring. Superb shade plant. Hardy. Up to 45cm.

Calamagrostis x acutiflora 'Karl Foerster' (Feather-reed grass): Forms upright clumps, flowering purplish in June/July, fading to gold then blond through winter. Hardy. Up to 1.8m. [Collect Only]

Calamagrostis x acutiflora 'Overdam' (Feather-reed grass): Upright clumps of narrow cream-striped leaves with stems of purplish flowers, which fade to blond through winter. Hardy. Up to 1.2m. [Collect Only]

Calamintha nepeta 'Blue Cloud': Spikes of small, soft blue flowers above mounds of minty scented green leaves. Loved by bees and butterflies. Hardy. Up to 30cm.

Calamintha nepeta 'White Cloud': Spikes of small white flowers above mounds of minty scented green leaves. Loved by bees and butterflies. Hardy. Up to 30cm.

Camassia leitchlinii 'Semiplena' (Camas): Tall spikes of large creamy white double flowers in late spring. [Collect Only]

Camassia quamash (Camas): Pretty late spring bulb with starry blue flowers which will naturalise in borders or grass. [Collect Only]

Campanula 'Iridescent Bells' (Bellflower 'Iridescent Bells'): Purple buds open to silvery-lilac bells in summer. Prefers a moisture retentive soil. Height to 80cm. Hardy

Campanula 'Sarastro' (Bellflower 'Sarastro'): Upright stems with long drooping large violet-blue bells. May need some support. Good cottage garden plant. Hardy. Up to 60cm.

Campanula glomerata 'Caroline' (Clustered bellflower): Tight clusters of lilac/purple flowers on short stems above neat, mat-forming foliage.

Campanula glomerata 'Superba' (Clustered Bellflower): Upright stems topped with clusters of bell-shaped blue flowers held above a carpet of soft green leaves. Loved by bees. Hardy. Up to 60cm. AGM.

Campanula lactiflora 'Loddon Anna' (Milky bellflower): Tall stems topped with palest pink flowers in mid-summer.

Campanula lactiflora 'Prichards Variety' (Milky bellflower): Clusters of warm blue flowers on tall stems in mid-summer.

Campanula latifolia var. alba: Easy to grow perennial with tall spikes of white bell flowers in early summer. Unfussy for soil type can cope with some shade.

Campanula persicifolia (Peach-leaved bellflower): Tall spikes of large, cup-shaped blue flowers over slender foliage in mid-summer.

Campanula persicifolia var. alba (Peach-leaved bellflower): Pure white large rounded cups on upright stems

Campanula punctata f. rubriflora: Long-hanging bell-like flowers in dark pink on upright stems above clumps of green foliage. Stems are flushed in dark red. Hardy. Up to 50cm.

Campanula takesimana 'Elizabeth' (Korean Bellflower): Upright stems with dark pink drooping large bells. Can be vigorous on good soil. May need some support. Bee-friendly. Hardy. Up to 70cm.

Cardamine quinquefolia: Light purple flowers emerge very early in spring, with attractive deeply divided leaves. Foliage dies down in summer.

Carex 'Silver Sceptre' (Sedge): Evergreen clump-forming grass with green strappy leaves striped with white. Ideal for border edging and pots. Hardy. Up to 50cm.

Carex oshimensis 'Everest': Evergreen, strappy leaves with a green centre and bright white edges. Very smart.

Catananche caerulea 'Alba' (Cupid's Dart (White)): Papery white flowers above slender grey-green foliage

Catananche caerulea 'Major' (Cupid's dart): Masses of papery blue flowers held on wiry stems all summer. Seed heads turn silver in late summer.

Cenolophium denudatum (Seseli libanotis, Baltic parsley): Flat umbels of pretty white flowers in summer. Fine, filigree foliage

Centaurea dealbata (Persian cornflower): Large, showy pink flowers over deeply divided foliage. Makes a good-sized clump in a couple of years [Collect Only]

Centaurea macrocephala (Giant knapweed): Huge, bright yellow almost fluffy flowers in mid-summer.

Centaurea montana (Perennial cornflower): Large blue flowers in early summer, repeated later in year if cut back. Very attractive to bees.

Centranthus ruber 'Albus' (White 'Valerian'): White panicles of white flowers in mid-late summer. Very easy, self-seeds.

Centranthus ruber 'Coccineus' (Valerian): Panicles of dark-red flowers in mid-summer, loved especially by butterflies. Classic cottage garden plant. Hardy. Up to 50cm.

Cephalaria gigantea (Giant scabious): Very tall wavy stems topped with large lemon yellow scabious-like flowerss [Collect Only]

Chaerophyllum hirsuitum var. roseum (Greater burnet): Flat heads of tiny pink flowers over finely cut green foliage. Long flowering from early summer. Informal and soft

Chasmanthium latifolium (Spangle grass): Deciduous perennial grass, with arching stems of flattened spikes. Bronze tints in Autumn. Moist, well-drained soil. Hardy. Up to 1m.

Chelonopsis moschata: A new introduction from Japan with tubular pink flowers. A shade lover.

Cichorium intybus f. album (Chicory- white form): White flowered form of wild chicory. Tall stems, flat white flowers in late summer. [Collect Only]

Cichorium intybus f. roseum (Chicory- pink form): Pink flowered form of wild chicory. Tall stems, flat pink flowers in late summer. [Collect Only]

Cirsium 'Mount Etna' (Brook thistle): White thistle flowers topped with soft pink held above typical thistley foliage.Very attractive to bees. Up to 80cm.

Cirsium rivulare 'Atropurpureum' (Brook thistle): Deep red thistle flowers held above typical thistley foliage.

Cirsium rivulare 'Frosted Magic' (Brook thistle 'Frosted Magic'): A brand new variety for 2016. White thistle flowers held above typical thistley foliage.

Convallaria majalis (Lily of the Valley): Scented white bells in spring, Great for spreading around in shade. [Collect Only]

Convallaria majalis 'Bordeaux' (Lily of the Valley): Double the height and more flower stems than the usual variety. Deliciously scented white flowers in spring. Hardy. Up to 30cm

Convallaria majalis 'Hardwick Hall' (Lily of the Valley): A form of lily of the valley with green leaves edged in yellow. Deliciously scented white flowers in spring. Hardy. Up to 25cm

Cornus canadensis: Ground cover plant with white four petalled flowers in spring. Leaves turn brilliant red in autumn. Ideal under deciduous trees

Coronilla valentina subsp. glauca 'Citrina': Small evergreen shrub with blue-grey, pinnate leaves and small, lemon-yellow flowers. Fragrant. Needs a sunny, sheltered position. Up to 1m.

Corydalis elata: Summer flowering Corydalis with bright blue flowers above soft green foliage. Excellent in some shade in moisture retentive soil.

Corydalis elata 'Blue Summit': Stunning electric blue flowers above pretty ferny foliage. Flowers have a coconut-like scent. Great for shady, moist soil. Hardy. Up to 30cm.

Crambe cordifolia: Huge sprays of white flowers over large, rhubarb-like leaves in early to mid-summer [Collect Only]

Crocosmia ' Emberglow': Vibrant deep-red funnel shaped flowers in late summer with sword shaped green foliage. A shorted variety than 'Lucifer'. [Collect Only]

Crocosmia 'Orange Pekoe' (PBR): Vibrant orange trumpet shaped flowers in late summer with sword shaped green foliage. A compact variety. Hardy. Up to 70cm. [Collect Only]

Crocosmia 'Paul's Best Yellow': Arching sprays of golden yellow flowers in late summer. A vigorous grower. [Collect Only]

Crocosmia x crocosmiiflora 'Citronella': Bright sunny yellow funnel shaped flowers in late summer with sword shaped green foliage. A compact variety. Hardy. Up to 60cm.

Crocosmia x crocosmiiflora 'Solfatare': Sprays of burnt orange flowers over strappy bronze foliage in late summer.

Cynara cardunculus (Cardoon): Dramatic, tall silver leaved plant topped with large purple thistle flowers in mid-summer.

Darmera peltata (Umbrella plant): Arching sprays of pretty pink flowers in early spring above large ornamental leaves. [Collect Only]

Darmera peltata 'Nana' (Umbrella plant 'Nana'): A compact form with rounded glossy leaves and pale pink flowers which appear before the leaves in the spring. Hardy. Up to 50cm. [Collect Only]

Delphinium 'Black Knight': Tall, dark-blue-purple semi-double flowers with a black centre. Flowers in early summer but often repeat flowers.

Deschampsia cespitosa: Summer flowering grass with airy silvery purple flower heads which keep their structure long into winter. Hardy. Up to 1.2m.

Deschampsia cespitosa 'Goldtau': Early flowering grass, in flower by mid-July. Airy flower plumes which shimmer if catch the light. Shorter than many varieties.

Deschampsia flexuosa 'Tatra Gold': Early flowering evergreen grass with bright yellow-green foliage. Airy bronze flower heads by mid-July. Hardy. Up to 50cm.

Dianthus carthusianorum: Tall stems ending in clusters of bright pink flowers above mounds of green, grassy foliage. Prefers sunshine. Hardy. Up to 50cm.

Dierama pulcherrimum (Angel's Fishing Rod): Tall, wiry, arching stems with soft pink nodding bells. Lovely near water or over paths

Dierama various colours (Angels Fishing Rod): Large bells of flowers held on tall, slender stems above grass-like foliage. Ranging in colours from white, pink and purple. [Collect Only]

Digitalis purpurea 'Alba' (White foxglove): Pure white flowers on tall spires in late spring. Biennial so keep and re-sow the seed [Collect Only]

Doronicum orientale (Leopard's bane): Bright yellow daisy flowers above fresh green foliage. A good early flower for the bees. Prefers partial shade. Hardy. Up to 60cm.

Dryopteris wallichiana (Alpine wood fern): A deciduous fern with hairy stems and green upright shuttlecock-like foliage. Shade-loving. Hardy. Up to 1m. AGM. [Collect Only]

Echinacea 'Hope' (Coneflower): Pastel pink daisy-like flowers with large orange central cone. Large blooms. Attractive to bees and butterflies.

Echinacea pallida (Purple coneflower): Long slender pale purple petals hang from a central cone. Very attractive to bees/butterflies

Echinacea purpurea 'Green Twister' (Coneflower): A new variety with a unusual mix of purple and lime green flowers with upturned petals and a central dark cone. Hardy. Up to 60cm.

Echinacea purpurea 'Magnus Superior' (Coneflower): Superb form with tall stems of pink daisy flowers with a central brown cone. Prefers full sun and good drainage. Hardy. Up to 1m.

Echinacea purpurea 'Rubinstern' (Coneflower): Large pink flowers with a big golden central cone in late summer

Echinops bannaticus 'Blue Globe' (Globe thistle): Tall upright stems of bright blue globe flowers above clumps of spiny, grey-green leaves. Bee-friendly. Hardy. Up to 1.2m.

Echinops ritro (Globe Thistle): Blue globes held above stout grey green foliage.

Echinops ritro 'Veitch's Blue' (Globe thistle): Dark blue spherical flower heads above attractive grey-green foliage. Good for giving height to a border. Loved by bees and butterflies.

Epilobium angustifolium 'Album' (White Rosebay Willowherb. Also Chamerion angustifolium 'Album'): Slender spires of white flowers in late summer. [Collect Only]

Epilobium angustifolium 'Stahl Rose' (Rosebay Willowherb.): Slender spires of pale pink flowers in late summer. Spreads rapidly through underground runners. To 1m. Hardy.

Epimedium 'Alabaster' (Barrenwort): Bright green, ovate leaves with contrasting delicate white star-like flowers on dark wiry stems. Shady ground cover. Hardy. Up to 20cm. [Collect Only]

Epimedium 'Amber Queen' (Barrenwort 'Amber Queen'): Amber is the perfect description for the flower colour, held well about the leaves in mid-spring.

Epimedium Enchantress (Barrenwort): Large toothed green leaves, evergreen with large pink flowers in the Spring. Leaves turn red in Autumn. [Collect Only]

Epimedium grandiflorum 'Purple Pixie' (PBR) (Barrenwort 'Purple Pixie'): Unusual reddish-purple flowers with prominent white spurs, held on wiry stems above the heart-shaped leaves. Hardy. Up to 30cm.

Epimedium grandiflorum 'Red Beauty' (Barrenwort 'Red Beauty'): Large purple-pink flowers with white tips to the spurs, held on wiry stems above the heart-shaped leaves. Hardy. Up to 30cm.

Epimedium grandiflorum 'White Queen' (Barrenwort 'White Queen'): Among the largest and showiest of white flowered Epimediums.

Epimedium perralderianum: Tiny lemon yellow flowers held on fine wires above attractive, marbled foliage. Very good in shade, even dry shade

Epimedium pinnatum subsp colchicum (Barrenwort): Attractive, evergreen, spiny, green leaves with yellow flowers held above the foliage. Shady ground cover. Hardy. Up to 30cm. AGM.

Epimedium pubigerum 'Orangekonigin' (Barrenwort): New variety with bright orange flowers in the spring. Flowers held above heart-shaped leaves. Shady ground cover. Hardy. Up to 30cm.

Epimedium x perralchicum 'Frohnleiten' (Barrenwort): Heart-shaped leaves are bronze-tinted, wiry stems of yellow, star-like flowers in spring. Shady ground cover. Hardy. Up to 30cm.

Epimedium x rubrum (Barrenwort): Green heart shaped leaves tinged with red around the edges in spring. Small red flowers with yellow undersides.

Epimedium x warleyense (Barrenwort): Dainty orange flowers in spring with yellow centres.

Epimedium x youngianum 'Merlin' (Barrenwort): Purple flowers infused with white, held above attractive heart-shaped leaves, purple tinted.Shady ground cover. Hardy. Up to 30cm.

Epimedium x youngianum 'Roseum' (Barrenwort): Palest pink nodding flowers over soft, heart-shaped foliage in spring.

Eragrostis curvula (Weeping love grass): Arching slender leaves and soft fluffy flowerheads in late summer [Collect Only]

Erigeron 'Adria' (Fleabane): Mound forming perennial forming masses of semi-double purple flowers with central yellow disc. Hardy. Up to 60cm.

Erigeron 'Dunkelste Aller' (Daisy 'Darkest of all'): Large purple daisy flowers over a long season in summer. Great in sunny, dry borders

Erigeron glaucus 'Sea Breeze' (Beach aster/Beach fleabane): Sun loving, pink daisy with fleshy evergreen leaves. Great for naturalising in rock walls, and dry border edges

Erinus alpinus 'Doktor Hahnle': Evergreen with small rosettes of green hairy leaves with short stems of purple-red starry flowers. Can tolerate shade. Hardy. Up to 10cm.

Eryngium ebracteatum var. poterioides: Tall and evergreen with attractive blue-green foliage and wiry stems of red-brown bobble-like flowers, Sanguisorba-like. Hardy. Up to 1.5m. [Collect Only]

Erysimum 'Bowles Mauve' (Perennial wallflower): Ever popular perennial wallflower. Purple flowers above evergreen foliage in spring.

Eupatorium cannabinum 'Flore Pleno' (Hemp agrimony): Large domes of double, warm pink flowers on tall stems. [Collect Only]

Eupatorium capillifolium (Dog Fennel): Upright stems of bright green foliage. Insignificant white flowers, grown for foliage effect. Frost-hardy. Up to 2.5m. [Collect Only]

Eupatorium fistulosum 'Bartered Bride': Tall, dramatic plant with large creamy white flowerheads in late summer. Good for back of borders. Attractive to bees. Hardy. Up to 2m. [Collect Only]

Eupatorium maculatum 'Gateway' (Joe Pye Weed): Slightly smaller than the species but still a dramatic plant with domes of purplish pink flowers in late summer. Hardy. To 1.8m. [Collect Only]

Eupatorium maculatum 'Riesenschirm' (Joe Pye Weed): Even taller than the species and a dramatic plant with huge heads of purplish pink flowers in late summer. Hardy. To 2.5m. AGM. [Collect Only]

Eupatorium maculatum Atropurpureum Group (Joe Pye-weed): Tall, dramatic plant with domes of purplish pink flowers in late summer [Collect Only]

Euphorbia amygdaloides var. robbiae (Mrs Robb's bonnet): Great plant for difficult dry, shady areas. Evergreen dark-green leaves and vibrant lime-green flowers in spring. Suckers and can spread.

Euphorbia characias subsp. wulfenii (Mediterranean spurge): Evergreen perennial with blue-green leaves and vibrant lime-green flowers in early summer. Prefers full sun. Hardy to about -10C, but not for long periods. Up to 1.2m.

Euphorbia griffithii 'Fireglow' (Spurge): Bright orange/red flower bracts in early summer. Vibrant red late summer foliage. [Collect Only]

Euphorbia myrsinites (Spurge): Sprawling stems of glaucous leaves and acid green flowers in spring. Prefers full sun and good drainage. Hardy. Up to 30cm. AGM

Euphorbia palustris (Marsh spurge): Bright acid green bracts in spring. [Collect Only]

Festuca amethystina: Evergreen grass with elegant, dusky purple arching flower stalks very early in season, for a grass.

Festuca tatrae: Dusky green fine leaves, arching, mobile flowers in summer [Collect Only]

Filipendula 'Red Umbrellas' (Meadowsweet): Green leaves, deeply veined with crimson, with clouds of fluffy pink flowers. Compact variety. Prefers a moist soil. Hardy. Up to 70cm.

Fragaria x ananassa 'Pink Panda' (PBR) (Pink flowered strawberry): Exactly like a small strawberry plant, except that the flowers are pink. Very attractive ground cover, berries are edible [Collect Only]

Fragaria x ananassa 'Red Ruby' (PBR) (Deep pink flowered strawberry): An ornamental strawberry plant with dark pink flowers from spring to autumn. Good ground cover [Collect Only]

Gaura lindheimeri 'The Bride': Beautiful airy stems of white flowers in mid to late summer

Gaura lindheimeri 'Whirling Butterflies': Airy stems of white flowers from pink buds, flowering in midsummer. Best in full sun, in well drained soil and a sheltered spot. Up to 1m.

Gentiana asclepiadea (Willow gentian): Deep blue, trumpet-shaped flowers on tall, arching stems. Willow-like leaves Prefers some shade. Hardy. Up to 1m. AGM.

Geranium 'Ann Folkard' (Cranesbill 'Ann Folkhard'): Magenta flowers with black eye on long trailing stems. Yellowish green leaves

Geranium 'Anne Thomson' (Cranesbill 'Anne Thomson'): Large magenta flowers over bright gold/green foliage.

Geranium 'Blue Cloud' (Cranesbill): Tall cultivar with pale blue flowers & dark purple veining above deeply divided green leaves. Long-flowering. Hardy. Up to 90cm. AGM.

Geranium 'Bob's Blunder' (Cranesbill 'Bob's Blunder'): Bright pink, small flowers over a spreading mat of soft, bronzy flowers.

Geranium 'Brookside' (Cranesbill 'Brookside'): A reliable, robust variety with large rich blue flowers over a mound of deeply divided leaves.

Geranium 'Dusky Crug' (Cranesbill 'Dusky Crug'): Neat mounds of chocolatey brown foliage with sugar pink flowers in mid-summer

Geranium 'Elke' (Cranesbill 'Elke'): Compact, long flowering with pink, white centred, white edged flowers.

Geranium 'Gerwat' (ROZANNE) (PBR) (Geranium 'Rozanne'): Noted for its large blue, white centred flowers and very long flowering period. A fine border geranium. Doesn't run.

Geranium 'Joy' (Geranium): Large pink silky flowers over more or less evergreen slightly silvery green leaves. [Collect Only]

Geranium 'Nimbus' (Cranesbill 'Nimbus'): Makes medium sized domes of finely divided foliage smothered in purplish blue flowers in early summer

Geranium 'Orion' (Cranesbill 'Orion'): A dome of deeply divided foliage, smothered in large blue flowers from early summer onwards

Geranium 'Orkney Cherry' (Bremmery) (PBR): Masses of small vivid pink flowers over a neat mound of bronzy green foliage.

Geranium 'Patricia' (Cranesbill 'Patricia' (Proper name: Geranium 'Brempat')): Masses of magenta flowers over fresh green foliage. [Collect Only]

Geranium 'Sirak' (Cranesbill 'Sirak'): Large, trumpet shaped glowing pink flowers for a long period from May to August.

Geranium himalayense 'Derrick Cook' (Cranesbill 'Derrick Cook'): Large white flowers with delicate purple veining above a clump of bright green leaves. Foliage turns red in autumn. To 35cm. Hardy.

Geranium maculatum 'Album': Clean white flowers over neat foliage. Great for establishing under trees and in shady areas.

Geranium maculatum 'Beth Chatto': Very pretty palest purple flowers held above attractive green foliage.

Geranium maculatum 'Elizabeth Ann' (PBR): Pink flowers over dark, almost wine red leaves.

Geranium phaeum (Mourning widow Geranium): Purple flowers with swept-back petals held high above soft green foliage. Early to flower, reliable and easy.

Geranium phaeum pale purple (Mourning widow Geranium): Pale purple flowers with swept-back petals held high above soft green foliage. Early to flower, reliable and easy. [Collect Only]

Geranium pratense 'Cloud Nine' (Meadow cranesbill 'Cloud Nine'): An attractive double form of the familiar meadow cranesbill with lovely soft blue flowers. Strong growing. Hardy. Up to 90cm.

Geranium pratense 'Mrs Kendall Clark' (Cranesbill 'Mrs Kendall Clark'): Palest purpley/grey flowers, makes a good mound of foliage

Geranium pratense 'Striatum' (SPLISH SPLASH) (Cranesbill 'Splish Splash'): Classic white cranesbill type flower mottled with purple streaks. [Collect Only]

Geranium pratense var. pratense f. albiflorum 'Laura' (PBR): An attractive double form of the familiar meadow cranesbill with lovely pure white flowers. Strong growing. Hardy. Up to 70cm. [Collect Only]

Geranium psilostemon (Armenian cranesbill): Big magenta flowers with shiny black eye. Tall and vigorous.

Geranium pyrenaicum 'Bill Wallis': Masses of tiny purple flowers, good for ground cover

Geranium sanguineum 'Album': Pure white flowers over a mat of dark green leaves

Geranium sanguineum 'Tiny Monster': A low-growing geranium with vibrant pink flowers with dark veins, with deeply divided foliage. Good ground cover. Hardy. Up to 30cm.

Geranium sanguineum var. striatum: Really pretty palest pink flowers with darker pink veins. Forms low growing mats or mounds.

Geranium sylvaticum 'Album' (Wood cranesbill): Upright stems of white saucer-shaped flowers above deeply divided leaves. Prefers moist shadier spots. Hardy. Up to 70cm. AGM.

Geranium sylvaticum 'Mayflower' (Wood cranesbill): Tall variety of geranium with erect stems of violet-purple flowers with a white centre, above deeply divided leaves. Hardy. Up to 75cm. AGM

Geranium wlassovianum: Warm purple flowers over attractive velvety foliage. Excellent autumn foliage colour.

Geranium x cantabrigiense 'Biokovo' (Cranesbill): Pale pink flowers with deep pink stamens above a low growing mat of small, aromatic, near-evergreen leaves. Hardy. Up to 20cm.

Geranium x cantabrigiense 'Westray' (PBR) (Cranesbill 'Westray'): Bright pink flowers on a low mound of small, near-evergreen leaves, red-flushed in late summer

Geranium x magnificum (Purple cranesbill): Covered in a mass of rich, violet-blue flowers in early summer. Large, slightly felty leaves. Vigorous but a short flowering season. Up to 70cm. [Collect Only]

Geranium x magnificum 'Rosemoor' (Geranium 'Rosemoor'): A mass of large purple flowers in early summer. Large, slightly felty leaves with good autumn colour. [Collect Only]

Geum 'Bell Bank' (Avens 'Bell Bank'): Large coral pink flowers over a rosette of crinkled leaves. [Collect Only]

Geum 'Flames of Passion' (PBR) (Avens 'Flames of Passion'): Arching stems of double warm red flowers in summer

Geum 'Georgenberg' (Avens 'Georgenburg'): Gold flowers held atop reddish stems in early to mid-summer.

Geum 'Karlskaer' (Avens 'Karlskaer'): Warm, apricot-orange cupped flowers over softly hairy green foliage.

Geum 'Lemon Drops' (Avens 'Lemon Drops'): Primrose yellow flowers, semi-evergreen foliage.

Geum 'Lisanne' (Avens 'Lisanne'): Pale yellow cupped flowers over softly hairy green foliage. Compact plant and long flowering season. Hardy. Up to 25cm.

Geum 'Mai Tai' (PBR) (Avens 'Mai Tai'): Semi-double, pale apricot flowers above green foliage. Long-flowering. Hardy. Up to 45cm.

Geum 'Nonna' (Avens 'Nonna'): New variety with warm yellow semi-double flowers edged in orange, above hairy green foliage. Long flowering. Hardy. Up to 40cm.

Geum 'Prinses Juliana' (Avens 'Prinses Juliana'): Bright orange flowers held on tall stems above mounds of rounded foliage. Flowers for ages and reflowers when cut back.

Geum 'Savannah Sunset' (Avens 'Savannah Sunset'): Apricot, semi-double flowers with red buds held on red stems above rosettes of rounded hairy leaves. Long flowering. Hardy. Up to 35cm.

Geum 'Scarlet Tempest' (PBR) (Avens 'Scarlet Tempest'): Scarlet, semi-double flowers held on tall stems above rosettes of rounded hairy leaves. Long flowering. Hardy. Up to 50cm.

Geum 'Stacey's Sunrise' (Avens 'Stacey's Sunrise'): Pale apricot flowers on compact stems above rosettes of rounded hairy leaves. Semi-evergreen. Long flowering. Hardy. Up to 30cm.

Geum 'Totally Tangerine' (PBR) (Avens 'Totally Tangerine'): Lovely single-flowered bright orange flowers held on erect stems above mounds of green foliage. Hardy. Up to 60cm. [Collect Only]

Geum rivale 'Leonards Variety' (Avens 'Leonards Variety'): Coppery- rose flowers held above rosettes of rounded, softly hairy foliage. To 40cm. Hardy

Gillenia trifoliata AGM (Bowman's root): Lovely plant with starry white flowers held high over elegant foliage. Great in light shade. Hardy. [Collect Only]

Hakonechloa macra (Japanese Flowing Grass): Mounds of arching green leaves that just touch the ground. A wonderful shade lover grown for its elegant flowing form.

Hakonechloa macra 'Aureola' (Golden Japanese Flowing Grass): Superb grass with subtle gold/green strips which forms a neat mound.

Helenium 'Kanaria' (Sneezeweed): Masses of clear lemon yellow flowers with swept back petals and central mustardy-gold dome. [Collect Only]

Helenium 'Mardi Gras' (Sneezeweed): Bright orange petals, splashed with yellow and brown central cone in late summer. Long flowering if cut back flowered stems.

Helenium 'Moerheim Beauty' (Sneezeweed): Brilliant coppery-red flowers with swept back petals and a central chocolate boss in late summer.

Helenium 'Wyndley' (Sneezeweed): Tall stems of yellow daisy-like flowers with brown central cone. Superb late summer perennial, attractive to bees. Hardy. Up to 90cm.

Helianthus 'Capenoch Star': A superb form of perennial sunflower with tall stems of cheery yellow flowers with pompom-like centres. Hardy. Up to 1.5m. AGM. [Collect Only]

Helianthus 'Lemon Queen' (Perennial sunflower): Strong and tall perennial sunflower with pale yellow flowers. Good for cut-flowers. Late summer colour. Hardy. Up to 2m.

Helleborus lividus: Evergreen perennial with blue-green leaves, red stems and pale green bowl shaped flowers. Needs a sheltered spot Up to 45cm. [Collect Only]

Helleborus niger (Christmas Rose): Pure white flowers in midwinter, evergreen foliage. [Collect Only]

Helleborus x hybridus (Hellebore): A selection of hellebores raised from our collection in the garden [Collect Only]

Helleborus x hybridus 'Double Queen Mixed' (Hellebore 'Double Queen Mixed'): A collection of double hellebores, in shades from green through cream to pink. [Collect Only]

Helleborus x hybridus 'Yellow Lady' (Hellebore 'Double Queen Mixed'): Large single flowers in shades of creamy lemon yellow in late winter. Semi-evergreen foliage. Great in shade. [Collect Only]

Helleborus x sternii: Evergreen perennial with blue-green leaves, purple stems and pale green bowl shaped flowers. Needs a sheltered spot. Up to 35cm. [Collect Only]

Hemerocallis 'Chicago Apache' (Day Lily 'Chicago Apache'): Large red velvety flowers, limey-yellow throat. [Collect Only]

Hemerocallis 'Corky' (Daylily): Slender yellow trumpets with mahogany stripe on back. Flowers held high on black stems above fine foliage. Superb

Hemerocallis 'Custard Candy' (Daylily 'Custard Candy'): Large, creamy flowers with maroon and lime green throat. [Collect Only]

Hemerocallis 'Happy Returns' (Daylily): Compact daylily with cheery lemon yellow flowers. Very free flowering, ideal for a sunny spot. [Collect Only]

Hemerocallis 'Sammy Russell' (Day lily 'Sammy Russell'): Rich, bronzey-red flowers in mid-summer over strappy foliage.

Hemerocallis 'Stafford' (Day lily): Large, velvety red flowers with a gold throat in mid-late summer. [Collect Only]

Hemerocallis 'Stella de Oro' (Day Lily 'Stella de Oro'): Pale yellow fragrant flowers with a darker yellow throat. Grass-like green foliage. Hardy. Up to 50cm. [Collect Only]

Hemerocallis citrina (Long yellow day lily): Fragrant lemon, yellow lily flowers on long stems above green strappy foliage. Flowers open in evening. Hardy. Up to 1.2m. AGM.

Hepatica nobilis: Pretty bowl shaped blue flowers in early spring.

Hesperantha coccinea 'Major' (Schizostylis (former name)): Bright red flowers on slender stems in late summer

Heuchera 'Midnight Rose' (PBR): Darkest purple leaves, splashed with bright pink. Excellent for all year round foliage colour [Collect Only]

Hosta 'Devon Green': Elegant hosta with tapering, dark green, fine-veined leaves. Lilac flowers in summer [Collect Only]

Hosta 'Empress Wu' (PBR) (Plantain lily): One of the largest leaved Hostas in cultivation - possibly the largest. Leaves up to 18" across when established. [Collect Only]

Hosta 'Fire and Ice': A fine mid-sized form, with twisted leaves with dark green edges and white centres. Lilac flowers in summer. Hardy. Up to 50cm. AGM [Collect Only]

Hosta 'Patriot': Large green leaves cleanly edged in white. Lilac flowers in summer. [Collect Only]

Hosta 'Sum and Substance': Large, bright green leaves. lavender flowers, good in shade or sun. [Collect Only]

Inula ensifolia: A low-growing perennial with lance-shaped leaves and bright yellow daisy-like flowers. Good for front of border. Hardy. Up to 40cm.

Inula hookeri: Bold heads of golden yellow flowers with hundreds of long petals. A good border filler.

Iris 'Langport Wren': Sword-shaped glaucous green leaves and stems of up to 4 flowers, with rich reddish-purple and deep maroon almost brown flowers. [Collect Only]

Iris ensata 'Light at Dawn' (Japanese iris): Large, white, very open, almost flat flowers with purple picotee edging.

Iris siberica 'Moon Silk' (Siberian Iris): Lovely pale-yellow flowers with whiter petal tips over strappy green foliage. Prefers moist soil. Makes a bold clump. Hardy. Up to 1m. [Collect Only]

Iris sibirica 'Gull's Wing' (Siberian Iris): Pure white flowers with a greeny yellow throat, over strappy green foliage. Prefers moist soil. Makes a bold clump. Hardy. Up to 1m. [Collect Only]

Iris sibirica 'Perry's Blue' (Siberian Iris): Lovely pale-blue flowers with white markings over strappy green foliage. Prefers moist soil. Makes a bold clump. Hardy. Up to 85cm.

Iris sibirica 'Silver Edge' (Siberian Iris): Rich purple flowers with a fine silver picotee petal edge. [Collect Only]

Kalimeris yomena 'Shogun' (Japanese Aster): Lavender, daisy flowers above attractive variegated leaves. Flowering late summer. Prefers full sun/moist soil. Hardy. Up to 60cm.

Kirengeshoma palmata (Koreana Group) (Yellow wax bells): Yellow waxy flowers hang over palmate foliage. A shade lover. [Collect Only]

Knautia macedonica: Lovely dark pink, scabious-like flowers from early to late summer.

Knautia macedonica 'Mars Midget': A more compact form of Knautia with dark-pink/red scabious like flowers above a mound of grey-green foliage. Hardy. Up to 40cm.

Lamium maculatum 'White Nancy' (Spotted dead nettle 'White Nancy'): A low ground cover plant with silvery heart-shaped leaves and short stems of white. Brightens up a shady area. Hardy. Up to 20cm.

Lamium orvala: A woodland perennial with large, crushed strawberry colour, lipped flowers in early summer.

Lamprocapnos spectabilis (Bleeding Heart, Dicentra): Arching stems with hanging, heart shaped pink flowers. A spring classic. [Collect Only]

Lamprocapnos spectabilis 'Valentine' (Bleeding Heart, Dicentra): Superb warm red flowered version of this familiar spring flowerer [Collect Only]

Lathyrus latifolius (Everlasting pea, perennial pea): Pink pea-like flowers on tall stems in late summer. Almost a climber, but not quite.

Lathyrus vernus (Spring pea): Two-tone purple and pink pea-like flowers in early spring

Leptinella squalida (Brass Buttons): Low-growing perennial with attractive feathery, bright green, fern-like foliage. Flowers are small, button-like in summer. Hardy. Up to 10cm.

Leptinella squalida 'Platt's Black' (Brass Buttons): Low-growing perennial with attractive feathery, bronzy-black foliage with green tips. Flowers are small, button-like. Hardy. Up to 10cm.

Leucanthemum ' Fiona Coghill' (Shasta daisy): Huge fluffy white flowers with a creamy yellow centre. [Collect Only]

Leucanthemum x superbum 'Aglaia' (Shasta Daisy): Double, frilly white flowers in late summer and autumn.

Leucanthemum x superbum 'Becky' (Shasta daisy): Shasta daisy with clean white flowers with golden centre. Long flowering season. Ideal for sunny border. Hardy. Up to 1m.

Leucanthemum x superbum 'Old Court Variety' (Shasta Daisy): Lovely old variety with feathery white petals around a bright yellow centre.

Leucanthemum x superbum 'Snowcap' (Shasta Daisy): Neat white flowers with yellow centre on short stemsfrom June to August. Ideal for sunny border and excellent for cutting

Leucanthemum x superbum 'Sonnenschein' (Shasta daisy): Shasta daisy with pale yellow flowers with golden centre. Excellent for cutting. Long flowering season. Hardy. Up to 90cm

Leucanthemum x supermum 'Broadway Lights' (PBR) (Shasta daisy): Shasta daisy with yellow flowers fading to white, with golden centre. Good for sunny border. Long flowering season. Hardy. Up to 40cm.

Leucojum aestivum 'Gravetye Giant' (Summer snowflake): Rather like a tall, green-tipped snowdrop, but flowering in mid to late spring. [Collect Only]

Liatris spicata 'Kobold' (Gayfeather): Plump spikes of purple flowers in mid to late summer [Collect Only]

Ligularia 'The Rocket': Dramatic spikes of yellow flowers on black stems over very large green toothed leaves [Collect Only]

Ligularia dentata 'Desdemona': Large orange daisy-like flowers over rounded greeny-bronze foliage with purple undersides.

Ligularia przewalskii: Elegant spikes of golden yellow flowers on black stems above very deeply divided green foliage. [Collect Only]

Ligusticum lucidum: Rarely seen clump forming perennial with frothy green leaves and umbels of white cow-parsley-like flowers in early summer.

Ligusticum scoticum (Scottish Lovage): Native plant with white umbels above mound of green leaves. Celery like leaves. Up to 60cm. Hardy

Liriope muscari (Blue turf lily,): Spikes of vibrant purple flowers in autumn, evergreen strappy foliage.

Liriope muscari 'Big Blue' (Blue turf lily): Spikes of vibrant purple flowers in autumn, larger than the usual form, evergreen strappy foliage. Good for dry shade. Hardy. Up to 50cm

Liriope muscari 'Okina' (Blue turf lily): Unusual bleached white strappy foliage, speckled green with age. Spikes of vibrant purple flowers in autumn, black berries. Hardy

Lobelia cardinalis 'Russian Princess' (Cardinal flower): Upright spikes of red leaves, topped with fuchsia pink flowers.

Lobelia x speciosa 'Hadspen Purple' (PBR): Dramatic spikes of purple flowers in late summer, above lance-shaped purple flushed leaves. Needs damp soil in summer. Hardy. Up to 60cm.

Lobelia x speciosa 'Tania': Dramatic spikes of brightest pink flowers in late summer.

Lupinus 'Chandelier' (Lupin 'Chandelier' (Band of Nobles Series)): Tightly packed spires of creamy yellow flowers in midsummer. Long flowering. Hardy. Up to 1m.

Lupinus 'My Castle' (Lupin 'My Castle' (Band of Nobles Series)): Tightly packed spires of brilliant red flowers in midsummer. Long flowering. Hardy. Up to 90cm. [Collect Only]

Lupinus 'The Governor' (Lupin 'The Governor' (Band of Nobles Series)): Tightly packed spires of blue and white flowers in midsummer. Long flowering. Hardy. Up to 90cm.

Lupinus 'The Page' (Lupin 'The Page' (Band of Nobles Series)): Tall spires of bright red flowers in midsummer. Cottage garden favourite. Hardy. Up to 1m.

Lupinus dwarf Lulu mixed (Lupin dwarf Lulu mix): Compact spikes in bright, mixed colours.

Lychnis flos-cuculi 'Jenny' (PBR) (Ragged Robin 'Jenny'): A lovely double, bright pink form of our native Ragged Robin

Lychnis x arkwrightii 'Vesuvius' (Campion): Striking perennial with bronze-green leaves and vibrant orange-red star-shaped flowers with notched petals. Hardy. Up to 45cm. [Collect Only]

Lythrum salicaria 'Blush' (Loostrife 'Blush'): Tapering, sturdy spikes of soft pink flowers in mid to late summer.

Lythrum virgatum 'Dropmore Purple': Upright spikes of purple-pink flowers in the mid-summer with lance-like foliage. Prefers a moist soil. Hardy. Up to 1m.

Meconopsis x sheldonii (Himalayan Blue Poppy): Stunning cup shaped true blue flowers above rosettes of hairy green leaves. Needs a moist soil and partial shade to thrive. Hardy. Up to 1m.

Melica altissmima 'Alba': Deciduous grass with green strappy leaves and delicate sprays of white flowers. Very tactile plant. Hardy. Up to 90cm.

Milium effusum 'Aureum' (Bowles's golden grass): Semi-evergreen grass with bright golden foliage with delicate golden flowers in the summer. Prefers partial shade. Hardy. Up to 50cm. AGM.

Miscanthus sinensis 'Morning Light' (Miscanthus 'Morning Light'): Elegant grass sporting fine green leaves with silvery-white central stripee. Flowers in late summer. [Collect Only]

Miscanthus transmorissonensis: Tall elegant, evergreen grass with arching stems of silvery grey flower heads. Flowers held well above the foliage. Hardy. Up to 1.2m.

Molinia caerulea 'Edith Dudszus' (Purple moor grass): Purple, almost black wnd-like flower stalks with slender purple flower heads in late summer.

Molinia caerulea 'Heidebraut' (Purple moor grass): Elegant flower stalks with slender purple flower heads in late summer. Makes an upright, vase shape.

Molinia caerulea 'Poul Petersen' (Purple moor grass): Very handsome grass, much beloved by modern garden designers. Makes an upright, vase shape of burnished gold in autumn. [Collect Only]

Molinia caerulea 'Transparent' (Purple moor grass): Deciduous grass with long feathery purple flower spikes. Likes moist but well-drained soil in sun or light shade.

Monarda 'Cranberry Lace' (PBR) (Bee Balm/Bergamot): A more compact variety with whorls of bright pink flowers over bright green aromatic foliage. Bee-friendly. Hardy. Up to 40cm. [Collect Only]

Monarda 'Fireball' (PBR) (Bee Balm/Bergamot): Whorls of scarlet-red flowers above clumps of lance-like aromatic foliage. Long flowering in mid- to late-summer. Prefers a moist soil.

Monarda 'Jacob Cline' (PBR) (Bee Balm/Bergamot): Whorls of the brightest imaginable red flowers over bright green aromatic foliage

Monarda 'Pink Supreme' (PBR) (Bee Balm/Bergamot): Whorls of bright pink flowers over bright green aromatic foliage. Compact variety. Prefers a moist soil. Hardy. Up to 60cm.

Monarda 'Saxon Purple' (Bee Balm/Bergamot): Whorls of deep purple flowers over bright green aromatic foliage. Good mildew resistance. Bee-friendly. Hardy. Up to 90cm

Morina longifolia: Whorls of white tubular flowers which age to pink, above prickly rosettes of glossy dark green aromatic leaves. Hardy. Up to 90cm.

Mukdenia rossii: Short plump spikes of white flowers in spring, but mainly grown for its foliage which turns brilliant red in autumn

Nepeta kubanica (Large flowered catmint): Upright stems of large deep blue flowers above aromatic deep green leaves. Long flowering. Prefers a sunny spot. Hardy. Up to 90cm.

Omphalodes cappadocica 'Cherry Ingram' (Navelwort): An early spring flowering perennial with lustrous leaves and pretty deep blue flowers in early spring.

Ophiopogon planescapus 'Nigrescens' (Black lilyturf): Jet back strappy leaves and purplish flowers in mid-summer. Widely and rightly used in modern planting schemes against silvery plants and paving.

Paeonia 'Buckeye Belle': Blowsy, glossy, deep red, semi-double large flowers with golden stamens. Attractive green foliage. A real stand-out plant. [Collect Only]

Paeonia lactiflora 'Bowl of Beauty' (Peony 'Bowl of Beauty'): Huge sugar-pink petal bowls filled with ripples of yellow ribbony bits. Swoon-worthy.

Paeonia lactiflora 'Duchesse de Nemours': Huge, pure white, fully double flowers with a delicious fragrance. Dark green foliage. Hardy. Up to 80cm. AGM.

Paeonia mlokosewitschii (Paeony 'Molly The Witch'): A truly lovely herbaceous peony with pale lemon yellow bowl-shaped flowers, with golden yellow stamens. Hardy. To 60cm.

Paeonia officinalis 'Alba Plena': Sumptuous, large double white flowers above green foliage in May. A traditional cottage garden plant. May need support. [Collect Only]

Paeonia officinalis 'Rubra Plena': The classic deep red double paeony. Deeply divided leaves unfurl in spring. Max Height 90cm. Flowers April to May. Full sun/partial shade. [Collect Only]

Panicum virgatum 'Squaw' (Switch grass): Deciduous grass with strappy green leaves which turn a purple red in autumn, with airy panicles of flowers flushed pink. Hardy. Up to 1m.

Papaver orientale 'Patty's Plum' (Oriental poppy 'Patty's Plum'): Huge sultry, antique bronzey purple flowers held above green hairy leaves [Collect Only]

Papaver orientale 'Queen Alexandra' (Oriental poppy): Large, papery, pale pink flowers with black blotch at the base of each petal over bright green hairy foliage. Height to 80cm. Hardy [Collect Only]

Penstemon 'Apple Blossom': Pale pink tubular flowers with a white throat over semi-evergreen, narrow foliage. Frost hardy. To 70cm. AGM.

Penstemon 'Dark Towers' (PBR): Pink tubular flowers which contrast with the dark bronze foliage. Semi-evergreen in milder areas. Protect from hard frosts. To 90cm.

Penstemon 'Garnet' (Andenken an Friedrich Hahn'): Wine-red tubular flowers with white throat markings and narrow leaves. Semi-evergreen in milder areas. Protect from hard frosts.

Penstemon 'Hidcote Pink': Pink tubular flowers, white throat and darker crimson veins.Semi-evergreen in milder areas. Protect from hard frosts. To 90cm.

Penstemon 'Midnight': Dark rich purple tubular flowers with lighter pink throat. Semi-evergreen in milder areas. Protect from hard frosts. To 90cm.

Penstemon 'Pensham Plum Jerkum': Plum-purple tubular flowers with white throat markings. Semi-evergreen in milder areas. Protect from hard frosts. To 70cm.

Penstemon 'Rich Ruby': Rich red tubular flowers and narrow leaves. Semi-evergreen in milder areas. Bee-friendly. Protect from hard frosts. To 70cm.

Penstemon 'Schoenholzeri': Brilliant scarlet tubular flowers, slender leaves.

Penstemon 'Sour Grapes' (Syn. Stapleford Gem): Purple-blue tubular flowers with a metallic sheen and patches of white in the throat. Protect from hard frosts. To 60cm.

Penstemon 'White Bedder' (Snowstorm): Pure white tubular flowers over semi-evergreen foliage

Penstemon heterophyllus 'Heavenly Blue': More compact, masses of blue tubular flowers touched with pink. Long-flowering and loved by bees. Protect from hard frosts. To 50cm.

Persicaria affinis 'Darjeeling Red': Semi-evergreen mat-forming perennial with green narrow leaves that turn bronze over winter. Spikes of pink poker-like flowers which darken with age.

Persicaria amplexicaulis (Red bistort): Spikes of reddish pink flowers from July to November. Robust plant ideal for filling awkward corners. Easy and reliable. [Collect Only]

Persicaria amplexicaulis 'Blackfield' (PBR) (Red bistort): New variety with fine spikes of burgundy flowers in late summer. Easy and reliable. [Collect Only]

Persicaria amplexicaulis 'Fat Domino' (Bistort 'Fat Domino'): A cracking new variety with plump, dark rose-red flower spikes which last for ages. [Collect Only]

Persicaria amplexicaulis 'Golden Arrow': Striking golden-green arrow-shaped foliage with spikes of reddish pink flowers. Will brighten up dark corners. Hardy. Up to 1m.

Persicaria amplexicaulis 'Rosea': Spikes of pale pink flowers in late summer. Large oval pointed leaves. Grows in most situations as long as not too dry. Hardy. Up to 1.2m. [Collect Only]

Persicaria bistorta 'Hohe Tatra' (Bistort. Was known as Polygonum bistortum): Upright orchid-like pink spikes make a bold show from May to July [Collect Only]

Persicaria bistorta 'Superba' (Bistort. Was known as Polygonum bistortum 'Superbum'): Upright fluffy pink spikes make a bold show in early summer. Great for filling larger spaces. [Collect Only]

Petasites paradoxus (Alpine butterburr): Silvery, wide but pointed leaves in summer. Flowers resembling white studded tennis balls in February. Excellent foliage plant

Peucedanum verticillare (Giant Hog Fennel/Giant Milk Weed): Huge and stately umbellifer with unfolding pinkish stems ultimately opening to a flat, open head of tiny greenish-white flowers

Phlox divaricata 'Clouds of Perfume': Deliciously scented and delicate pale blue flowers which are long-lasting. Prefers some partial shade. Hardy. Up to 30cm.

Phlox divaricata 'White Perfume': Deliciously scented and delicate pure white flowers which are long-lasting. Prefers some partial shade. Hardy. Up to 30cm.

Phlox paniculata 'David' (Phlox): An excellent phlox with clean white flowers and a delightful scent. [Collect Only]

Phlox paniculata 'Eventide': Mauve-purple, scented flowers on erect stems and green lance-shaped leaves. A good vigorous selection. Hardy. Up to 90cm. AGM [Collect Only]

Phlox subulata 'Lilacina' (Moss phlox): Pale blue star-like flowers above a cushion of hairy narrow leaves. Good for alpine beds or rockeries. Hardy. Up to 15cm.

Physostegia virginiana (Obedient plant): Spires of light pinkish purple flowers on slowly spiralling stems. [Collect Only]

Pimpinella tripartita: White, small cow-parsley-like flowers above dark green lobed leaves. May self-seed. Said to cope with dry shade. Hardy. Up to 60cm.

Poa labillardierei (Blue tussock grass): Elegant, upright grass with slender blue-green leaves. Arching, open biscuity-coloured panicles in mid-summer. [Collect Only]

Podophyllum peltatum (May apple): Large umbrella like leaves, with white waxy flowers beneath. A fine woodland plant

Polemonium 'Bressingham Purple' (Polbres) (PBR) (Jacob's Ladder 'Bressingham Purple'): Striking purple foliage topped with purplish blue flowers in early summer.

Polemonium 'Northern Lights' (Jacob's Ladder 'Northern Lights'): Heavenly scented, compact form of Jacob's Ladder, with warm blue flowers

Polemonium reptans 'Blue Pearl': Attractive, low-growing form with fresh green ferny foliage and sky-blue bell-like flowers. Hardy. Up to 30cm. [Collect Only]

Polemonium reptans 'Stairway to Heaven' (PBR) (Jacob's Ladder): Superb variety with attractive variegated foliage and lavender blue flowers.

Polemonium reptans 'Touch of Class' (PBR) (Jacob's Ladder): Attractive, low-growing form with variegated ferny foliage and pale-blue bell-like flowers. Hardy. Up to 40cm. [Collect Only]

Polygonatum x hybridum (Solomon's seal (Syn. Polygonatum multiflorum)): Arching sprays of paired white bells, tinged with green in spring. [Collect Only]

Potentilla 'Blazeaway' (Cinquefoil): Zingy orange flowers, flecked with yellow and red in summer over clumps of dark green foliage. Hardy. Up to 50cm. [Collect Only]

Potentilla 'Emilie' (Cinquefoil): Large, mahogany red flowers with gold markings at the outer petal margins.

Potentilla 'Gibsons Scarlet' (Cinquefoil): Loose sprays of single crimson flowers in summer. Long flowering period.

Potentilla 'William Rollisson' (Cinquefoil): Scarlet-orange, double flowers with flashes of yellow. A brilliant splash of colour in hot colour schemes [Collect Only]

Pratia angulata (Lawn Lobelia): Starry white flowers above a creeping, evergreen foliage, followed by berries in the autumn. Good ground cover. Hardy. Up to 10cm. [Collect Only]

Primula 'Francisca': Really unusual variety with green/acid yellow flowers.

Primula 'Wanda': Low growing primula with bright purplish red flowers in early spring

Primula beesiana (Candelabra primula): Whorls of pink flowers on tall stems. Ideal for naturalising in damp ground near ponds.

Primula bulleyana: Upright tall stems of bright orange-yellow flowers from a rosette of green leaves. Likes damp borders. Hardy. Up to 60cm.

Primula denticulata (Drumstick primula): Round heads of purple, occasionally white flowers above a rosette of green leaves.

Primula denticulata 'Rubin' (Drumstick primula): Dark pink/magenta balls of flowers on sturdy stems. [Collect Only]

Primula japonica 'Alba' (Candelabra primula): Whorls of white flowers on tall stems, rising from a rosette of green leaves. [Collect Only]

Primula rosea 'Grandiflora': Bright pink flowers with a yellow centre on an erect stem, may flower before the leaves open. Prefers moist soil. Hardy. Up to 20cm.

Primula sikkimensis (Himalayan cowslip): Tall stems with clusters of pendulous pale yellow funnel-shaped scented flowers, rising from a rosette of green leaves. Up to 40cm.

Primula vialli (Vial's Primrose): Flower spikes of crimson buds open into a mass of pale purple flowers in mid-summer. Often reflowers in late summer/autumn

Primula vulgaris (Primrose): The much loved wild primrose which self-seeds merrily here at the nursery. [Collect Only]

Primula vulgaris 'Drumcliff' (Primrose): Palest pink flowers over glossy olive-green foliage. One of a range of new dark-leaved primulas from Ireland. [Collect Only]

Primula vulgaris 'Innisfree' (Primrose): Dark, velvety red flowers over very dark green foliage. One of the new range of wonderful dark leaved primroses from Ireland [Collect Only]

Pulmonaria 'Moonshine' (PBR) (Lungwort): Silver leaves edged in green are the star of this plant, with pale blue bell-shaped flowers. Good mildew resistance. Hardy. Up to 30cm.

Pulmonaria 'Opal' (Ocupol) (Lungwort 'Opal'): Palest ice-blue flowers over dark green leaves splashed with silver [Collect Only]

Pulmonaria 'Trevi Fountain' (Pulmonaria 'Trevi Fountain'): Long flowering, with blue flowers over silver-speckled leaves in spring. [Collect Only]

Pulmonaria longifolia 'Diana Clare' (Lungwort): Long, slender silver foliage and purple flowers in spring. [Collect Only]

Pulsatilla vulgaris 'Rote Glocke' (Pasque flower Red Clock): Large dark red flowers with yellow stamens flowers over soft ferny foliage. Thrives in sunny, well drained spots. To 40cm. Hardy.

Ranunculus aconitifolius 'Flore Pleno' (Batchelor's Button): A very elegant plant with white button-like double flowers on branched stems with palmate dark green leaves. Hardy. Up to 80cm. AGM

Rheum 'Ace of Hearts' (Ornamental rhubarb): Large heart-shaped deep green leaves with crimson undersides. Sprays of palest pink flowers in summer. [Collect Only]

Rheum palmatum 'Atrosanguineum' (Ornamental rhubarb): Very large, deeply dissected green leaves with plum-coloured undersides. Sprays of rich pink flowers in summer. [Collect Only]

Rodgersia 'Bronze Peacock': Leaves are bronze tinted as they open, like a horse-chestnut's, and then turn green. Tall sprays of fluffy pink flowers Hardy. Up to 1m. [Collect Only]

Rodgersia 'Irish Bronze' (Roger's Flower 'Irish Bronze'): Bronze tinted leaves, shaped much like a horse-chestnut's. Sprays of fluffy white flowers in mid-summer. [Collect Only]

Rodgersia pinnata 'Chocolate Wing': Fluffy panicles of pale pink flowers in mid-summer. Large, deeply divided leaves open bronze, in spring, retaining chocolate hue into autumn. [Collect Only]

Rudbeckia maxima (Coneflower): Very tall, upright Rudbeckia with large, bright yellow cones with black eyes in late summer

Rudbeckia subtomentosa 'Little Henry' (PBR) (Sweet black-eyed susan): Yellow quilled flowers with chocolate brown centres in late summer. Compact variety with a delightful vanilla scent. Hardy. Up to 90cm.

Salvia greggii 'Emperor': Masses of maroon-purple flowers and delicious scented foliage. Half-hardy, copes with -3 to -5C in a sheltered spot. To 60cm.

Salvia nemorosa 'Amethyst' (Balkan Clary): Slender spires of long-lasting warm purple spikes from mid to late summer.

Salvia nemorosa 'Caradonna' (Balkan Clary): Rich purple spikes in early summer - just in time for Chelsea Flower Show at which is widely used

Salvia nemorosa 'Ostfriesland' (Balkan Clary): Masses of upright spikes of purple flowers in mid summer. Easy and trouble free

Salvia nemorosa 'Serenade': Dark stemmed flower spikes with lighter purple flowers above sage-like grey-green leaves. Prefers a sunny spot. Hardy. Up to 70cm. [Collect Only]

Salvia x sylvestris 'Mainacht' (Perennial sage 'May Night'): Spikes of warm purplish blue flowers in mid-summer [Collect Only]

Salvia x sylvestris 'Schneehugel': White flower spikes above grey-green leaves. Flower over a long season from mid-summer. Bees love it! Hardy. Up to 50cm. [Collect Only]

Sanguinaria canadensis (Bloodroot): White flowers with prominent yellow anthers above blue-grey rounded leaves Prefers partial shade. Hardy. Up to 50cm.

Sanguisorba 'Little Angel' (Burnet 'Little Angel'): Brand new variety. Compact plant with maroon button flowers and variegated foliage

Sanguisorba 'Pink Tanna': Fluffy Pink flower bobbles mid-late summer over attractive fern-like foliage. Good in damp soil, sun or shade. Hardy. Up to 1m. [Collect Only]

Sanguisorba 'Tanna' (Burnet 'Tanna'): Spikes of burgundy-red bobbly flowers appear in late summer over crinkled blue-green leaves. [Collect Only]

Sanguisorba hakusanensis 'Pink Brushes': Tactile, long pinky/purplish tassels in late summer. Thought to be more drought tolerant than other forms. Hardy. Up to 1.4m [Collect Only]

Sanguisorba menziesii (Burnet): Long maroon spikes in late summer over clumps of frondy, grey green foliage

Sanguisorba obtusa (Burnet): Arching fluffy pink flower spikes in mid to late summer over crinkled grey green foliage. [Collect Only]

Sanguisorba officinalis 'Red Thunder': Stems of dark-red bobble-like flowers above attractive divided foliage. Up to 1.2m.

Sanguisorba tenuifolia 'Alba': Soft arching white bottle-brush flowers over fine, frondy foliage. [Collect Only]

Saxifraga 'Wada': Glossy, green leaves with red undersides. Red stems bearing clouds of white star-like flowers in the autumn. Up to 50cm.

Saxifraga fortunei 'Shiranami': Rosettes of green lobed leaves, wiry stems topped with double pure white flowers in late summer/early autumn. Hardy. Up to 25cm.

Saxifraga stolonifera ' Kinki Purple': Rounded, hairy leaves with green above and red below. Wiry stems topped with white flowers in early autumn. Hardy. Up to 30cm.

Saxifraga x urbium 'Variegata' (London Pride): Wiry stems topped with dainty pale pink flowers over ground evergreen rosettes of green leaves with creamy yellow markings.

Scabiosa 'Butterfly Blue' (Scabious Irish Perpetual): Large cornflower blue frilled flowers over lance-shaped grey-green foliage. Semi-evergreen, very long flowering season.

Scabiosa caucasica 'Miss Willmott': Large ice-white flowers over lance-shaped grey-green foliage [Collect Only]

Sedum 'Indian Chief': Large pink-red flower heads held above succulent grey-green foliage. Loved by bees and butterflies. Prefers a sunny spot. Hardy. Up to 60cm. [Collect Only]

Sedum 'Matrona' (Ice plant 'Matrona'): Sturdy pinkish stems topped with flat warm pink flowers

Sedum 'Ruby Glow': Low-growing perennial with dark stems and foliage followed by ruby-red star-shaped flowers in late summer. Good ground cover in dry soil. [Collect Only]

Sedum telephium 'Jennifer' (Stonecrop 'Jennifer'): Pleasing two-tone cream/pink flowers over reddish foliage [Collect Only]

Selinum filicifolium: Glossy, green ferny foliage and umbels of white flowers with a green ruff in mid-summer. Prefers a sunny spot. Hardy. Up to 30cm. [Collect Only]

Selinum wallichianum (Wallich milk parsley): Stately umbellifer with large white heads atop large lacy leaves

Sidalcea 'Sussex Beauty' (Prairie mallow): Large candy pink flowers held on stiff upright stems above rounded green foliage.

Sidalcea 'William Smith' (Prairie mallow): Rich rose pink flowers on upright spikes in mid-summer. Round, glossy, semi-evergreen leaves. Hardy. Up to 90cm. [Collect Only]

Sisyrinchium striatum 'Aunt May': Open fans of strappy variegated iris-like leaves topped with lemon yellow flowers in summer. Up to 60cm.

Stachys officinalis 'Hummelo' (Betony): Upright spikes of rosy purple flowers above pointed dark green foliage. Very attractive to bees [Collect Only]

Stipa capillata (Feather grass): A really beautiful grass with open, feathery flowerheads in mid to late summer.

Stipa gigantea (Golden oats): Evergreen grass with tall stems and panicles of oat-like purple-green flowers which ripen to gold. Up to 2m. [Collect Only]

Stokesia laevis 'Blue Star' (Stoke's aster): Large fluffy blue flowers in mid-summer, slender green leaves.

Stokesia laevis 'Mary Gregory' (Stoke's aster): Large fluffy lemon yellow flowers in mid summer above slender green leaves.

Stokesia laevis 'Purple Parasols' (Stoke's aster): Large, fluffy purple flowers over slender grey-green foliage

Strobilanthes attenuata: Deep blue curved flowers in late summer over soft slightly furry leaves

Tellima grandiflora 'Forest Frost' (Fringecups): Slender spikes of pinkish flowers late spring to mid-summer. Semi-evergreen reddish foliage. Great in shade. Height to 30cm. Hardy

Thalictrum 'Purplelicious': A new variety which is a more compact plant. Fluffy heads of lilac purple flowers on dark stems in early summer. Hardy. Up to 40cm.

Thalictrum 'Splendide': Superb Thalictrum with clouds of purple flowers open for a very long time in late summer

Thalictrum aquilegiifolium: Fluffy heads of pale pink or white flowers in early summer [Collect Only]

Thalictrum aquilegiifolium 'Album' (Meadow rue, white): Clouds of fluffy white flowers in spring, foliage looks like an aquilegia, but much taller. [Collect Only]

Thalictrum aquilegiifolium 'Thundercloud' AGM (Meadow rue): Plumes of purple flowers with darker purple stamens in early summer. [Collect Only]

Thalictrum delavayi 'Album' (White mountain rue): Dainty cup-shaped white flowers held high above fern-like greyish green leaves.

Thalictrum delavayi 'Hewitt's Double' (Mountain rue): Tiny purple pom-pom flowers dance airily above ferny grey-green foliage.

Thalictrum delavayi AGM: Dainty lilac-mauve flowers 2cm in width, with prominent creamy yellow stamens above fern-like bright green leaves. [Collect Only]

Thalictrum delavayi f. acuminatum (Meadow rue, Lavender meadow rue): Sprays of lilac flowers, soft ferny foliage.

Thalictrum delavayi var. mucronatum (Meadow rue): Sprays of small hanging pinkish purple flowers above soft filigree foliage

Thalictrum ichangense (Thalictrum ichangense): Rounded purplish green leaves with silvery veins, dainty sprays of tiny pink flowers in summer.

Thalictrum kiusianum: Choice, low growing plant for semi-shade. Attractive foliage and small palest pink fluffy flowers.

Thalictrum minus 'Adiantifolium' (Meadow rue): Grown largely for its delicate, glaucous ferny foliage with branching, panicles of tiny, yellow-green flowers. Hardy. Up to 60cm.

Thalictrum ramosum: Short species of Thalictrium, up to 40cm, with dark stems of lilac pink fluffy flowers above dainty, fern-like foliage. Prefers shade.

Thalictrum rochebrunianum (Meadow rue, Lavender meadow rue): Airy sprays of lavender flowers with yellow stamens on tall purple-tinged stems

Thermopsis rhombifolia var. montana: Lupin-like with sunny yellow pea-like flowers and bright green foliage. Flowers followed by velvety-brown seed pods. Hardy. Up to 90cm.

Tiarella 'Iron Butterfly' (Foam flower): Deeply cut green leaves with a purple-black centre. Long flowering spikes of pale-pink star-like flowers. Hardy. Up to 30cm.

Tiarella 'Pink Bouquet' (Foam flower): A constant supply of palest pink flower spikes from spring to mid-summer. Soft maple shaped green leaves with slim dark central markings

Tiarella 'Pink Skyrocket' (PBR) (Foam flower): A vigorous variety with deeply divided, elegant foliage and dainty pink flower spikes. Very long flowering

Tiarella 'Spring Symphony' (PBR) (Foam flower): Attractive perennial with deeply divided foliage with dark blotch in centre.Long flowering with spikes of white star-shaped flowers.

Tiarella wherryi (Foam flower): Spikes of tiny white flowers in spring/early summer. Great in shade

Tradescantia 'Euridice' (Spiderwort): Three-petalled delicate pale blue flowers above strappy foliage. Great as a ground clump former in sun or part shade. [Collect Only]

Tradescantia 'Innocence' (Spiderwort (Andersoniana Group)): Three-petalled pure white flowers with purple tinged anthers. Strappy bright green foliage.

Tradescantia 'Leonara' (Spiderwort): Three-petalled vibrant violet-blue flowers above strappy foliage. Great as a ground clump former in sun or part shade [Collect Only]

Tradescantia 'Osprey' (Spiderwort): Three-petalled white flowers with a fluffy blue centre above strappy foliage. Great as a ground clump former in sun or part shade. [Collect Only]

Tragopogon porrifolius (Salsify, 'Jack-go-to-bed-at-noon'): Large, open blue/purple flowers, which close in the afternoon. [Collect Only]

Trautvetteria caroliniensis (False bugbane): Fluffy white, lightly fragrant flowers, similar to the Thalictrum flowers. Prefers partial shade with a moist soil. Hardy. Up to 90cm.

Tricyrtis 'White Towers' (Toadlily): Upright stems and star-shaped white flowers above fresh green foliage. Shade-lover. Prefers a moist soil. Hardy. Up to 60cm.

Tricyrtis formosana 'Dark Beauty' (Toadlily): Upright flower stems of star-shaped white flowers heavily spotted with blue/purple above dark-spotted lance-shaped leaves. Sheltered position. [Collect Only]

Tricyrtis formosana 'Seiryu' (Toadlily): Upright stems of blue star-like flowers, often speckled with lilac and a paler centre. Above dark green spotted foliage. Hardy. Up to 60cm. [Collect Only]

Trifolium ochroleucon (Sulphur Clover): Spikes of creamy yellow clover-like flowers above three-lobed foliage. Re-flowers if cut back. Good for bees. Hardy. Up to 50cm.

Trifolium rubens 'Red Feather' (Ornamental clover): Fat spikes of red clover-like flowers above three-lobed foliage.

Trillium erectum (Birthroot): Deep maroon, three petalled flowers over three-leaved foliage. Very choice woodland plant. Hardy. Up to 50cm. AGM

Trillium grandiflorum (American wake-robin): Pure white, three petalled flowers over three-leaved foliage.

Trollius 'Lemon Queen (Globeflower): A clump-forming perennial with glossy deeply divided leaves. Pale yellow flowers in late spring and early summer.

Trollius chinensis 'Golden Queen' (Globeflower): Glowing gold cup-shaped flowers with a very prominent central boss of gold anthers. Really stunning.

Trollius x cultorum 'Alabaster' (Globeflower): Translucent pale yellow cup shaped flowers from early to late summer.

Verbena hastata: Tall, branched stems like a candelabra with spikes of purple flowers loved by bees. Needs a sheltered spot and full sun. Up to 1.2m. [Collect Only]

Verbena hastata 'Alba': Tall, branched stems like a candelabra with spikes of small white flowers loved by bees. Needs a sheltered spot & full sun. Up to 1.2m.

Verbena hastata 'Rosea': Tall, branched stems like a candelabra with spikes of small pink flowers loved by bees. Needs a sheltered spot in full sun. Up to 1.2m. [Collect Only]

Veronica gentianoides (Gentian Speedwell): Short spikes of pale-blue flowers above rosettes of evergreen glossy leaves. Good for the edge of a border. Hardy. Up to 45cm.

Veronica longifolia (Long-leaved speedwell): Tall spires of blue flowers above long, slender foliage.

Veronica longifolia 'Charlotte' (PBR) (v): Spikes of white flowers, slender variegated leaves.

Veronica spicata 'Purpleicious' (Speedwell): Spikes of dark-purple flowers over a mound of shiny green leaves. Long-flowering and excellent as a cut flower. Hardy. Up to 50cm.

Veronica spicata 'Rotfuchs': Spikes of deep pink flowers over a mound of shiny green leaves. Long-flowering and excellent as a cut flower. Hardy. Up to 40cm. [Collect Only]

Veronica spicata 'Silver Carpet': Low-growing plant with silvery foliage and short spikes of deep purple-blue flowers. Good for edging a border. Hardy. Up to 25cm.

Veronica spicata 'Ulster Dwarf Blue': Compact variety with spires of blue flowers above bright green lance shaped foliage. Prefers a sunny spot. Hardy. Up to 30cm.

Veronicastrum virginicum ' Adoration' (Culver's Root): Slender spikes of lilac-pink flowers above rising whorls of slender green leaves. [Collect Only]

Veronicastrum virginicum 'Album' (Culver's Root): Slender spikes of white flowers above rising whorls of slender green leaves. [Collect Only]

Veronicastrum virginicum 'Lavendelturm' (Culver's Root): Long, narrow spires of tiny, pale lavender-blue flowers above whorls of narrow, dark green, serrated leaves. Tall to up to 2m.

Veronicastrum virginicum 'Pink Glow' (Culver's Root): Slender spikes of pale pink flowers above rising whorls of slender green leaves. [Collect Only]

Veronicastrum virginicum 'Red Arrows' (Culver's Root): Reddish-pink flower spikes open to lilac, over rising whorls of pointed green leaves. [Collect Only]

Vinca minor 'Gertrude Jekyll': A compact mat-forming evergreen perennial with trailing stems of dark green leaves. White flowers from mid spring to autumn. [Collect Only]

x Heucherella 'Kimono' (PBR): Mounds of attractive, evergreen, slightly silvery leaves with darker veins

x Heucherella 'Tapestry' (PBR) (Coral Flower): Two-tone green/bronze leaves dusky pink flowers June-July. Semi-evergreen. Max Height 20cm. Shade/partial shade. Hardy.

Found 545 matches:

Main Flower Colour

Height when grown

Aspect

Flowering

Spread Rate

Type