Achillea 'Pretty Belinda' (Yarrow 'Pretty Belinda'): Bright pink, flat flowerheads over ferny green foliage. Shorter than most other Achilleas at about 50cm. Best in full sun, light soil.

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

Allium 'Millennium': Sturdy stems of pinky purple globe-like flowers. Strappy green foliage which remains fresh through the summer. Loved by bees. Hardy, Up to 40cm.

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. Hardy. Up to 30cm.

Armeria maritima 'Rubrifolia' (Thrift 'Rubrifolia'. Syn. Armeria maritima 'In the Red'): Clumps of narrow bronze foliage topped with spheres of bright pink flowers. An old-fashioned cottage garden favourite. To 25cm.

Armeria maritima 'Splendens' (Thrift 'Splendens'): Clumps of narrow green foliage topped with spheres of pink flowers. An old-fashioned cottage garden favourite. To 25cm.

Astilbe 'Cappuccino' (PBR): Large, upright panicles of creamy white flowers in summer over contrasting dark bronze ferny foliage. Hardy. Up to 60cm. [Collect Only]

Astilbe 'Flamingo' (PBR): A new variety with arching flamingo-pink panicles and glossy dark green foliage. Up to 50cm. [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]

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.

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.

Centaurea dealbata (Persian cornflower): Large, showy pink flowers over deeply divided foliage. Makes a good-sized clump in a couple of years. To 60cm. Hardy. [Collect Only]

Centaurea montana 'Carnea' (Perennial cornflower 'Carnea'): A lovely soft pink form of the perennial cornflower. Mounds of silvery soft green foliage. Prefers a sunny spot and good drainage. Hardy. Up to 45cm. [Collect Only]

Centaurea montana 'Parham' (Perennial cornflower 'Parham'): Large lavender purple fluffy flowers over silvery-green foliage. Very attractive to bees and butterflies. To 40cm.

Centranthus ruber 'Albus' (White Valerian): White panicles of white flowers in mid-late summer. Very easy, self-seeds. Perennial and hardy. To 60cm.

Collection to grow from seed (Collection to grow from seed): Three superb perennials that are easy to grow from seed.

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

Coreopsis verticillata 'Moonbeam' (Tickseed 'Moonbeam'): A fabulous variety with pale lemon yellow daisy-like flowers. Held on wiry stems. Hardy. Long-flowering if dead-headed. Up to 60cm.

Coreopsis verticillata 'Zagreb' (Tickseed 'Zagreb'): Cheery bright yellow daisy flowers held aloft on wiry stems with delicate foliage. Hardy. Up to 40cm.

Deschampsia flexuosa: Attractive architecturally shaped dark green foliage contrasts well with other plants. Pretty airy silvery purple flowerheads. To 50cm.

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

Geranium 'Lakwijk Star' (Cranesbill 'Lakwijk Star'): Purple flowers with darker veining held above clumps of soft grey-green foliage which turns a vibrant red in autumn. Hardy. Up to 45cm.

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

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 palmatum: Bright pink flowers held on wiry stems above rosettes of evergreen foliage. To 60cm. Frost hardy.

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

Geranium pratense 'Striatum' (SPLISH SPLASH) (Meadow cranesbill 'Splish Splash'): Classic white cranesbill type flower mottled with purple streaks. To 60cm. Hardy.

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 [Collect Only]

Hemerocallis 'Happy Returns' (Daylily 'Happy Returns'): Compact daylily with cheery lemon yellow flowers. Very free flowering, ideal for a sunny spot. To 40cm. Hardy.

Hosta 'Carol': A lovely medium sized hosta with mid-green leaves edged in white. Lavender flowers in mid-summer. Hardy. Up to 50cm.

Hosta 'Halcyon': Medium sized Hosta with attractive blue-grey heart-shaped leaves and pale lavender purple flowers. Hardy. Up to 40cm. [Collect Only]

Hosta 'One Man's Treasure': Bright green shiny leaves, distinctive red tinge to leaf stems.

Hosta 'Patriot': Large green leaves cleanly edged in white. Lilac flowers in summer. To 50cm. Hardy.

Hosta 'Praying Hands': Very upright, rippled leaves. Leaves are green, narrowly edged in white and curl up. Lilac flowers in summer. Hardy. Up to 40cm. AGM.

Hosta 'Sum and Substance': Large, bright green leaves. lavender flowers, good in shade or sun. Hardy. To 60cm high and wide. [Collect Only]

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

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

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': Pure white tubular flowers over semi-evergreen foliage. Frost-hardy perennial. Up to 60cm.

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

Phlomis russeliana (Turkish sage): Whorls of lemon yellow flowers rise above mats of grey-green rough leaves. Hardy. To 50cm.

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

Polemonium caeruleum f. albiflorum (Jacob's Ladder - white form): Clusters of pure white flowers over foliage with leaflets arranged in pairs.Good in part shade. To 50cm. Hardy.

Potentilla 'Esta Ann' (Cinquefoil 'Esta Ann'): Vibrant yellow flowers with a red centre held well above a mound of dark green strawberry-like foliage. Hardy. Up to 40cm.

Potentilla nepalensis 'Miss Willmott' (Cinquefoil 'Miss Willmott'): Cherry pink flowers with a darker centre above dark green strawberrry-like foliage. To 40cm.

Potentilla thurberi 'Monarch's Velvet' (Cinquefoil 'Monarch's Velvet'): Dark red velvety flowers with a darker eye held daintily above green, deeply divided foliage

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

Salvia nemorosa 'Ostfriesland' (Balkan Clary 'Ostfriesland'): Masses of upright spikes of purple flowers in mid summer. Easy and trouble free. To 50cm. Hardy

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

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

Sesleria autumnalis (Autumn moor grass): Evergreen grass with strappy bright green leaves, turning more yellow in autumn with silvery white flowers in summer. Hardy. Up to 60cm.

Stachys macrantha 'Rosea' (Betony 'Rosea'): Upright spikes of pale pink flowers above pointed dark green foliage. The flowers are a bit orchid like in shape. Very attractive to bees. To 50cm. Hardy.

Stachys officinalis 'Hummelo' (Betony 'Hummelo'): Upright spikes of rosy purple flowers above pointed dark green foliage. Very attractive to bees. To 50cm. Hardy. [Collect Only]

Stipa tenuissima (Mexican feather grass.): Soft plumes of very tactile grass from early summer. Stands well through winter, turning progressively more pale. To 50cm.

Stipa tenuissima 'Wind Whispers' (Syn. Nassella tenuissima): Soft plumes of very tactile grass from early summer. Stands well through winter

Stokesia laevis 'Blue Star' (Stoke's aster 'Blue Star'): Large fluffy blue flowers in mid-summer, slender green leaves. To 40cm. Hardy

Stokesia laevis 'Purple Parasols' (Stoke's aster 'Purple Parasols'): Large, fluffy purple flowers over slender grey-green foliage. A lovely plant for sunny, well-drained borders. To 40cm. Hardy. [Collect Only]

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

Tradescantia (Andersoniana Group) 'Osprey' (Spider lily 'Osprey'): Three-petalled white flowers with a fluffy blue centre above strappy foliage. Great as a ground clump former in sun or part shade.

Tradescantia (Andersoniana Group) 'Red Grape' (Spider lily 'Red Grape'): Three-petalled large, reddish-pink flowers above strappy green foliage. Great as a ground clump former in sun or part shade. Hardy. Up to 50cm.

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.

Veronica longifolia 'Melanie White' (Long-leaved speedwell 'Melanie White'): Spikes of pure, clean white flowers, and long slender foliage. Good in sun or part shade. Good as a cut-flower. Hardy. Up to 60cm.