Allium senescens (German garlic/Broadleaved chives): Clusters of pale pink or white flowers, slender strappy leaves which don't die back when the plant is in flower

Aquilegia McKana group (Granny's bonnet. Columbine): Large trumpet flowers with long spurs in lemon yellow and other pastel colours in late spring. Attractive to bees. Hardy. Up to 80cm.

Aster divaricatus (White wood aster. Syn. Eurybia divaricata): Upright dark stems with a mass of small white starry flowers. Large, oval dark green mildew resistant leaves. Good for shade. Hardy. Up to 60cm.

Astrantia 'Buckland' (Hattie's pincushion, Masterwort 'Buckland'): Palest pink pincushion flowers over a long season in summer. Larger flowers than most and good strong foliage. Up to 50cm. Hardy.

Astrantia major (Greater masterwort): White/green pincushion flowers. Good for drying, I'm told! Great in sun/shade in soil that isn't too dry. Hardy. Up to 60cm.

Astrantia major 'Roma' (PBR) (Hattie's pincushion, Masterwort 'Roma): A fine pink Astrantias with very long lasting pink flowerheads. Easy to grow in any spot that's not too dry. Hardy. Up to 50cm.

Athyrium niponicum var. pictum (Painted lady fern): Deciduous fern with blue-grey fronds with a silvery sheen and dark burgundy midribs. Prefers a moist shady sheltered spot. Up to 50cm.

Bergenia 'Bressingham White' (Elephant's ears 'Bressingham White'): Large evergreen leaves turn reddish hues in winter. Clusters of white, pink tinged flowers in late winter. Hardy. Up to 35cm.

Brunnera macrophylla 'Alexander's Great' (PBR) (Siberian bugloss 'Alexander's Great'): 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 'Hadspen Cream' (Siberian bugloss 'Hadspen Cream'): Large, heartshaped green leaves with wide cream margin. Sprays of forget-me-not blue flowers in spring. Hardy. Up to 45cm.

Brunnera macrophylla 'Jack Frost' (PBR) (Siberian bugloss 'Jack Frost'): Large, heartshaped silver leaves with green veins and leaf edges. Sprays of forget-me-not blue flowers in spring.Shade-loving plant. Hardy. Up to 45cm.

Brunnera macrophylla 'Jennifer' (Siberian bugloss 'Jennifer'): Sprays of bi-coloured blue and white forget-me-not-like flowers above green heart-shaped leaves. A great shade-loving plant. Hardy. Up to 45cm.

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

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

Chaerophyllum hirsutum 'Roseum' (Hairy chervil 'Roseum'): Flat heads of tiny pink flowers over finely cut green foliage. Long flowering from early summer. Informal and soft. Up to 50cm. Hardy.

Coreopsis verticillata 'Grandiflora' (Tickseed 'Grandiflora'): Compact variety with bright and cheery golden yellow daisy-like flowers. Held on wiry stems. Hardy. Up to 60cm.

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. [Collect Only]

Filipendula palmata 'Nana': Shorter form of meadowsweet with heads of frothy pink flowers above dark green divided foliage. Prefers moist well-drained soil. Hardy. Up to 40cm.

Geranium 'Alan Mayes' (Cranesbill 'Alan Mayes'): Long flowering geranium with bright blue flowers with purple veining. Clumps of hairy green leaves, turning red in autumn. Hardy. Up to 45cm.

Geranium 'Brookside' (Cranesbill 'Brookside'): A reliable, robust variety with large rich blue flowers over a mound of deeply divided leaves. Height to 45cm. Hardy [Collect Only]

Geranium 'Ivan' (Cranesbill 'Ivan'): Vibrant magenta-pink flowers with a dark black centre above yellow green leaves. Leaves turn red in autumn. Hardy. Up to 50cm.

Geranium 'Nimbus' (Cranesbill 'Nimbus'): Makes medium sized domes of finely divided foliage smothered in purplish blue flowers in early summer. To 50cm. Hardy

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

Geranium 'Red Admiral' (Cranesbill 'Red Admiral'): A compact, cultivar with masses of magenta pink flowers and black veining above green deeply divided foliage. Hardy. Up to 60cm.

Geranium 'Sirak' (Cranesbill 'Sirak'): Large, trumpet shaped glowing pink flowers for a long period from May to August. Fully hardy. Height to 60cm.

Geranium macrorrhizum 'Ingwersen's Variety' (Cranesbill 'Ingwersen's Variety'): A very useful ground cover Geranium with rounded, aromatic foliage. pale pink flowers in early summer. Good in shade. Hardy. To 40cm.

Geranium maculatum 'Beth Chatto' (Spotted cranesbill 'Beth Chatto'): Very pretty palest purple flowers held above attractive green foliage. To 50cm. Hardy. [Collect Only]

Geranium maculatum 'Vickie Lynn' (Spotted cranesbill 'Vickie Lynn'): Pale lavender flowers above a clump of fresh green divided leaves. Prefers soil that doesn't dry out in summer. Hardy. Up to 45cm.

Geranium pratense 'Dark Reiter' (Meadow cranesbill 'Dark Reiter'): Dark purple/bronze leaves with single purple flowers in mid-summer. To 40cm. Hardy

Geranium pratense 'Mrs Kendall Clark' (Meadow cranesbill 'Mrs Kendall Clark'): Palest purpley/grey flowers, makes a good mound of foliage. Hardy. To 40cm.

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

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

Geum 'Fire Storm' (PBR) (Avens 'Fire Storm'): A great new compact Geum with rich orange double flowers above mounds of rounded foliage. Long flowering. Hardy. Up to 50cm.

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

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 'Rijnstroom': A bright orange semi-double flower in late spring. Prefers a moist soil and sunny spot but can tolerate light shade. Hardy. Up to 50cm.

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 '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.

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

Geum Scarlet Tempest = 'Macgeu001' (PBR) (Avens 'Scarlet Tempest'): Scarlet, semi-double flowers held on tall stems above rosettes of rounded hairy leaves. Long flowering. Hardy. Up to 50cm.

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

Helleborus x sternii (Stern's hybrid hellebore): Evergreen perennial with blue-green leaves, purple stems and pale green bowl shaped flowers. Needs a sheltered spot. Up to 35cm.

Hemerocallis 'Corky' (Daylily 'Corky'): Slender yellow trumpets with mahogany stripe on back. Flowers held high on black stems above fine foliage. Superb plant. To 60cm. Hardy

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.

Hosta 'Blue Mouse Ears': A small form of Hosta with smooth rounded blue-grey leaves and soft purple flowers in the summer. Hardy. Up to 50cm.

Hosta 'June': A popular cultivar. Glaucous blue green heart-shaped leaves with yellow-green variegation in the leaf centre. Purple flowers. Hardy. Up to 50cm.

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

Lamium orvala: A woodland perennial with large, crushed strawberry colour, lipped flowers in early summer. Hardy. Up to 50cm.

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

Leucanthemum x superbum 'Aglaia' (Shasta Daisy 'Aglaia'): Double, frilly white flowers in late summer and autumn. Glossy green foliage. Fully hardy, dislikes soggy soils. Height to 50cm

Leucanthemum x superbum 'Goldfinch' (PBR) (Shasta Daisy 'Goldfinch'): Semi-double creamy yellow flowers which fade slowly to ivory white

Monarda 'Fireball' (PBR) (Bee Balm/Bergamot 'Fireball'): Whorls of scarlet-red flowers above clumps of lance-like aromatic foliage. Long flowering. Prefers a moist soil. Hardy. Up to 60cm. [Collect Only]

Persicaria amplexicaulis var. pendula: Dark-pink flower spikes which droop rather than stand upright. Long flowering. Hardy. Up to 60cm. [Collect Only]

Polemonium 'Lambrook Mauve': Sprays of light purple-pink bell-shaped flowers with a yellow centre above fresh green ferny foliage. Hardy. Up to 60cm.

Polemonium Bressingham Purple = 'Polbress' (Jacob's Ladder 'Bressingham Purple'): Striking purple foliage topped with purplish blue flowers in early summer. Hardy. To 60cm

Polemonium reptans 'Stairway to Heaven' (PBR) (Jacob's Ladder 'Stairway to Heaven'): Superb variety with attractive variegated foliage and lavender blue flowers. To 50cm. Hardy

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

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

Primula japonica 'Miller's Crimson' (Japanese primula 'Miller's Crimson'): Whorls of dark pink, almost red flowers on tall stems, rising from a rosette of green leaves. To 60cm. Hardy

Primula x bulleesiana: Candelabra primula with upright tall stems of mixed bright orange-yellow, pink and purple flowers from a rosette of green leaves. Hardy. Up to 60cm.

Rudbeckia fulgida var. sullivantii 'Goldsturm': Large gold flowers with a chocolate eye produced in profusion from late summer well into autumn. Hardy. Up to 60cm.

Sanguisorba 'Little Angel' (Burnet 'Little Angel'): Brand new variety. Compact plant with maroon button flowers and variegated foliage. Hardy. Up to 30cm. Hardy.

Sanguisorba 'Proud Mary' (Burnet 'Proud Mary'): Burgundy-red bobbly flowers appear in late summer over crinkled blue-green leaves. Long flowering. Hardy. Up to 60cm. [Collect Only]

Sanguisorba 'Tanna' (Burnet 'Tanna'): Spikes of burgundy-red bobbly flowers appear in late summer over crinkled blue-green leaves. Height to 50cm. Hardy.

Sanguisorba menziesii (Menzies' burnet): Long maroon spikes in late summer over clumps of frondy, grey green foliage. To 60cm. Fully hardy

Saruma henryi (upright wild ginger): An unusual shade loving perennial with pale green, hairy, heart shaped leaves and bright yellow three-petalled flowers. Hardy. Up to 50cm.

Scabiosa caucasica 'Perfecta Alba' (Scabious 'Perfecta Alba'): Large pure white frilled flowers over lance-shaped grey-green foliage. Height to 60cm. Hardy.

Scabiosa caucasica 'Perfecta Blue' (Scabious 'Perfecta Blue'): Large cornflower blue frilled flowers over lance-shaped grey-green foliage. Height to 60cm. Hardy.

Tricyrtis formosana 'Seiryu' (Toadlily 'Seiryu'): 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]

Trollius x cultorum 'Lemon Queen' (Globeflower 'Lemon Queen'): A clump-forming perennial with glossy deeply divided leaves. Pale yellow flowers in late spring and early summer. Hardy. Up to 60cm. [Collect Only]

Veronica longifolia 'Charlotte' (PBR) (Long-leaved speedwell 'Charlotte'): Spikes of white flowers, slender variegated leaves. Good in sun or part shade. Hardy. Height to 40cm. [Collect Only]