Alchemilla alpina (Lady's mantle): A miniature Alchemilla with dainty, 5 lobed leaves and a froth of tiny green flowers in spring. Height to 10cm. Hardy

Anemone sylvestris (Snowdrop anemone): Large pure white flowers over a mound of green ferny foliage. Hardy. Up to 30cm.

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

Bergenia 'Overture' (Elephant's ears 'Overture'): Vibrant magenta flowers over deep green leaves that turn claret in winter. Hardy. Up to 30cm.

Bergenia cordifolia 'Vinterglod' (Elephant's ears 'Vinterglod' (Winterglow)): 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]

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

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

Brunnera macrophylla 'Dawson's White' (Siberian bugloss 'Dawson's White'): Heart-shaped green leaves variably edged in creamy white with sprays of blue forget-me-not flowers in spring. Hardy. Up to 15cm.

Brunnera macrophylla 'Sea Heart' (PBR) (Siberian bugloss 'Sea Heart'): Large heart-shaped leaves with strong silver colouration with green veins. Sprays of forget-me-not blue flowers. Hardy. Up to 30cm.

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.

Campanula glomerata 'Alba' (White clustered bellflower): Tight clusters of white flowers on short stems above neat, mat-forming foliage. Height about 30cm. Hardy.

Carex oshimensis 'Evergold' (Japanese sedge 'Evergold'): Evergreen, strappy leaves with a vibrant yellow centre and bright green edges. Hardy, easy and trouble-free. Up to 30cm.

Centaurea montana 'Alba' (Perennial cornflower - white): Large white cornflower-like flowers over grey-green foliage. To 30cm. Hardy.

Ceratostigma plumbaginoides (Plumbago, Hardy plumbago, dwarf plumbago): Brilliant blue flowers in later summer over foliage which turns redder as winter approaches. [Collect Only]

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

Corydalis elata: Summer flowering Corydalis with bright blue flowers above soft green foliage. Excellent in some shade in moist soil. Hardy. Up to 30cm.

Dierama trichorhizum (Angel's Fishing Rod): Dwarf form with drooping bell-like flowers in purple pink above grassy foliage. Well-drained soil that doesn't dry out. Hardy. Up to 15cm.

Epimedium 'Amber Queen' (PBR) (Barrenwort 'Amber Queen'): Amber is the perfect description for the flower colour, held well about the leaves in mid-spring. Hardy. Up to 30cm.

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

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

Epimedium x warleyense (Barrenwort): Dainty orange flowers in spring with yellow centres. Great for shady areas. To 30cm. Hardy.

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

Erigeron glaucus 'Sea Breeze' (Fleabane 'Sea Breeze'): Sun loving, pink daisy with fleshy evergreen leaves. Great for naturalising in rock walls, and dry border edges. To 20cm. Hardy.

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

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

Geranium 'Dilys': Low-growing form with deep pink flowers with dark purple veining. Long flowering. Good for the front of a border or in pots. Hardy. Up to 30cm. [Collect Only]

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

Geranium himalayense 'Baby Blue' (Cranesbill 'Baby Blue'): Large blue cup shaped flowers with purple veining. Spreading habit, forming a carpet of deeply divided leaves. Hardy. Up to 30cm.

Geranium himalayense 'Gravetye' (Cranesbill 'Gravetye'): Purplish blue cup shaped flowers with purple veining. Pink tinged early foliage, spreading habit [Collect Only]

Geranium macrorrhizum 'Bevan's Variety' (Cranesbill 'Bevan's Variety'): Superb ground cover Geranium especially for dry shade. Bright pink over a dense mound of aromatic foliage. Hardy. To 30cm.

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

Geranium maculatum 'Elizabeth Ann' (Spotted cranesbill 'Elizabeth Ann'): Pink flowers over dark, almost wine red leaves. Fully hardy. Height to 40cm.

Geranium Orkney Cherry = 'Bremerry' (PBR) (Cranesbill 'Orkney Cherry'): Masses of small vivid pink flowers over a neat mound of bronzy green foliage. Height to 25cm. Hardy

Geranium Patricia = 'Brempat' (Cranesbill 'Patricia'): Masses of magenta flowers over fresh green foliage. Height to 30cm. Fully hardy.

Geranium Rozanne = 'Gerwat' (PBR) (Geranium 'Rozanne'): Noted for its large blue, white centred flowers and very long flowering period. A fine border geranium. Doesn't run. To 30cm. Hardy [Collect Only]

Geranium sanguineum (Bloody cranesbill): Neat, mat forming hardy geranium with bright pink flowers throughout the summer. Good for edging and pots.

Geranium sanguineum 'Album' (Bloody cranesbill 'Album'): Pure white flowers over a mat of dark green leaves. Height to 20cm. Fully hardy.

Geranium sanguineum 'Ankum's Pride' (Bloody cranesbill 'Ankum's Pride'): A low-growing geranium with rose pink flowers with darker veins, above a mat of divided foliage. Hardy. Up to 15cm.

Geranium sanguineum 'Elsbeth': A low-growing geranium with magenta pink flowers, above a mat of divided foliage. Hardy. Up to 15cm.

Geranium sanguineum 'Max Frei' (Bloody cranesbill 'Max Frei'): Neat mounds of bright pink flowers over dense, semi-evergreen foliage.

Geranium sanguineum 'Tiny Monster' (Bloody cranesbill '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 (Striped bloody cranesbill): Really pretty palest pink flowers with darker pink veins. Forms low growing mats or mounds.

Geum 'Borisii': A shorter form with vivid orange-red flowers on upright stems and semi-evergreen foliage. Vigorous and good for front of border. Hardy. Up to 30cm.

Geum 'Georgenberg' (Avens 'Georgenburg'): Gold flowers held atop reddish stems in early to mid-summer. To 30cm. Hardy

Geum 'Rusty Young' (Avens 'Rusty Young'): Warm golden yellow flowers splashed with coppery red.

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

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.

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

Hosta 'Golden Tiara': A medium sized hosta with leaves up to 10cm and vibrant green leaves edged in yellow. Deep purple flowers on stems up to 50cm. Hardy. [Collect Only]

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

Liriope muscari 'Monroe White' (Blue turf lily 'Monroe White'): Spikes of pure white flowers in autumn, evergreen strappy grass-like foliage. Prefers a shady spot. Hardy. Up to 30cm.

Maianthemum bifolium (False lily of the valley): Shade-loving spreading perennial. Pairs of glossy oval leaves. Like a mini-hosta. Spikes of white star-shaped flowers. Hardy. Up to 10cm.

Mukdenia rossii: Short plump spikes of white flowers in spring, but mainly grown for its foliage which turns brilliant red in autumn. Up to 30cm.

Persicaria affinis 'Darjeeling Red' (Knotweed '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.

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

Podophyllum peltatum (May apple): Large umbrella like leaves, with white waxy flowers beneath. A fine woodland plant. Height to 30cm. Hardy. [Collect Only]

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

Primula 'Francisca' (Polyanthus 'Francisca'): Really unusual variety with green/acid yellow flowers. Very eye-catching flowers which last for absolutely ages. To 20cm. Hardy.

Primula denticulata 'Rubin' (Drumstick primula 'Rubin'): Dark pink/magenta balls of flowers on sturdy stems. To 25cm. Hardy

Primula denticulata var. alba (Drumstick primula - white): Pure white balls of flowers on sturdy stems. To 25cm. Hardy

Primula elatior (Oxslip): Pale yellow, primrose colour flowers in clusters on gently arching stems.

Primula sieboldii 'Snowdrop' (Japanese Woodland Primula 'Snowdrop'): Pure white open flowers over a rosette of green leaves. Prefers a moist soil. Hardy. Up to 20cm. [Collect Only]

Pulmonaria 'Blue Ensign' (Lungwort 'Blue Ensign'): Rich blue flowers in spring over unspotted dark green foliage. A reliable hardy perennial. Up to 30cm. [Collect Only]

Pulmonaria 'Cotton Cool' (Lungwort 'Cotton Cool'): Slender leaves, so heavily spotted that they're almost completely silver. Classic pulmonaria purple/blue/pink flowers. To 30cm. Hardy.

Pulmonaria 'Diana Clare' (Lungwort 'Diana Clare'): Long, slender silver foliage and purple flowers in spring. To 30cm Hardy.

Pulmonaria 'Victorian Brooch' (PBR) (Lungwort 'Victorian Brooch'): Superb variety with flowers in varying shades of rich pink. To 30cm. Hardy

Sedum takesimense Atlantis ('Nonsitnal'): A delightful variegated sedum with bright yellow flowers, loved by bees. Low growing. For alpine beds, rockeries and containers. Hardy. Up to 30cm.

Tiarella 'Pink Bouquet' (Foam flower 'Pink Bouquet'): Palest pink flower spikes from spring to mid-summer. Maple shaped green leaves with slim dark central markings. To 30cm. Hardy

Veronica austriaca 'Crater Lake Blue' (Speedwell 'Crater Lake Blue'): Vivid blue spikes above a mound of green foliage.To 30cm. Hardy.