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

Achillea 'Martina' (Yarrow 'Martina'): A superb variety with long lasting lemon yellow flowerheads, fading slowly to cream. Ferny green foliage. Hardy. To 75cm [Collect Only]

Achillea 'Moonshine' (Yarrow 'Moonshine'): Very popular variety with large bright yellow/gold flowerheads above silvery green ferny foliage. Height to 80cm [Collect Only]

Achillea 'Paprika' (Yarrow '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' (Yarrow 'Summerwine'): Bright, beaujolais wine red flat flowerheads over ferny foliage. Perfect for pollinators. Thrives in full sun and dry soil. Up to 90cm.

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

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

Anemone hupehensis var. japonica 'Pamina' (Japanese Anemone 'Pamina'): Double, deep pink flowers in late summer into autumn. Hardy and reliable. To 90cm

Aster novae-angliae 'Purple Dome' (Syn. Symphyotrichum novae-angliae 'Purple Dome'): A more compact variety with sprays of purple semi-double flowers with golden centre. Great late season colour. Loved by butterflies. Up to 60cm.

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

Aster trifoliatus subsp. ageratoides 'Ashvi': White flowers in a neat mound over a very long season - July to November. Hardy. Up to 80cm. [Collect Only]

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.

Astilbe 'Ellie': Large, upright panicles of white flowers in mid-summer over dark green ferny foliage. Hardy. Up to 80cm.

Astrantia major 'Red' (Hattie's pincushion, Masterwort 'Red'): Dark red flowers held above strong green foliage. A seed raised variety so some variability. Repeat flowers readily if dead-headed. Hardy. Up to 90cm.

Astrantia major Gill Richardson Group (Hattie's pincushion, Masterwort 'Gill Richardson'): Superb variety with cherry red flowers held above strong green foliage. Repeat flowers readily if dead-headed. Hardy. Up to 90cm.

Briza media (Lesser quaking grass): Semi-evergreen grass with beautiful delicate dangling flower heads. Short lived perennial but it will self-seed around. Up to 70cm.

Campanula persicifolia 'Chettle Charm' (Peach-leaved bellflower 'Chettle Charm'): Large white cups with tinged with violet blue at the petal edges. Very pretty summer flowering perennial. To 75cm.

Campanula persicifolia var. alba (Peach-leaved bellflower white flowered): Pure white large rounded cups on upright stems. Long flowering. Height to 70cm. Hardy.

Cenolophium denudatum (Seseli libanotis, Baltic parsley): Flat umbels of pretty white flowers in summer. Fine, filigree foliage. Great in borders, sun or part shade. Hardy. To 90cm [Collect Only]

Crocosmia 'Emberglow': Vibrant deep-red funnel shaped flowers in late summer with sword shaped green foliage. A shorted variety than 'Lucifer'. To 70cm. [Collect Only]

Deschampsia cespitosa 'Goldtau' (Tufted hair grass 'Goldtau'): Early flowering grass, in flower by mid-July. Airy flower plumes which shimmer if catch the light. Shorter than many varieties. To 75cm.

Echinacea purpurea 'Rubinstern' (Coneflower 'Rubinstern'): Large pink flowers with a big golden central cone in late summer. Needs full sun and good drainage. To 90cm.

Eryngium alpinum 'Blue Star': Large electric-blue flowers with a spiky collar and spiky silver-green foliage. Slightly shorter then some other Eryngium varieties. Hardy. Up to 70cm. [Collect Only]

Eryngium bourgatii 'Picos Amethyst'': Stunning steely blue flowers on stiff stems with a gorgeous purple tint. Loves sunshine and well-drained soil. To 70cm. [Collect Only]

Eryngium x zabelii 'Big Blue (Sea Holly 'Big Blue): Large electric-blue thimble-shaped flowers with a spiky collar and silver-green foliage. Long flowering and bee-friendly. Hardy. Up to 75cm

Eryngium x zabelii 'Jos Eijking' (Sea Holly 'Jos Eijking'): Large steely blue bracts surround a dome of tiny blue flowers in summer. Long-lasting flowers.Thrives in a sunny,dry spot. To 70cm. Hardy.

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

Gaura lindheimeri Rosyjane = 'Harrosy' (PBR) (Gaura 'Rosyjane'): Airy sprays of pink flowers with a white petal centre. Perennial, but dislikes winter wet and doesn't thrive outdoors in cold areas. To 80cm. [Collect Only]

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

Geranium phaeum 'Lily Lovell' (Dusky cranesbill 'Lily Lovell'): Large, rich purple flowers with white centre. Petals swept back. Hardy. Flowers early in the season. To 80cm.

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

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

Gillenia trifoliata (Bowman's root): Lovely plant with starry white flowers held high over elegant foliage. Great in light shade. Hardy. To 90cm.

Helenium 'El Dorado' (Sneezeweed 'El Dorado'): A very good rich yellow with a long flowering period from July onwards. To 90cm. [Collect Only]

Helenium 'Meranti' (Sneezeweed 'Meranti'): Attractive brick red flowers around a central brown cone in late summer. Long flowering if cut back flowered stems. Hardy. Up to 70cm.

Hemerocallis 'Frans Hals' (Day lily 'Frans Hals'): A very distinctive variety with bi-colur warm red and orange flowers in mid-summer. A stand out plant in the garden. Up to 70cm.

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

Hosta 'Frances Williams': Large heart-shaped crinkled leaves with a prominent green-yellow margin. Lavender purple flowers in mid summer. Hardy. Up to 75cm.

Hosta 'Spartacus': A large variety with heart-shaped, deeply veined, leaves with a green centre and wide yellow margin. Lavender purple flowers in mid summer. Hardy. Up to 75cm.

Lamprocapnos spectabilis 'Alba' (formerly Dicentra) (Bleeding Heart, Dicentra): Pure white form of the familiar Bleeding Heart. Very pretty in dappled shade. Does best in soil that isn't too dry. Hardy. To 70cm [Collect Only]

Lamprocapnos spectabilis 'Valentine' (Bleeding Heart, Dicentra): Superb warm red flowered version of this familiar spring flowerer. Hardy. Up to 80cm. [Collect Only]

Liatris spicata 'Alba': Spikes of white flowers in mid to late summer. Very useful vertical accent. Bees adore it. To 80cm. Hardy

Lobelia cardinalis 'Queen Victoria' (Cardinal flower 'Queen Victoria'): Upright spikes of red leaves, topped with scarlet flowers. A perennial, but can be short lived. to 80cm. Hardy.

Lychnis flos-cuculi 'White Robin' (White Ragged Robin): A pretty white form of our native Ragged Robin. Starry white flowers in early summer. Thrives in damp, part-shaded spots.

Maianthemum racemosum (False solomon's seal. Syn. Smilacena racemosa): Arching sprays of white flowers with bold, oval green foliage. A fine woodland plant, especially if soil is not too dry. To 90cm. Hardy. [Collect Only]

Molinia caerulea 'Edith Dudszus' (Purple moor grass 'Edith Dudszus'): Purple, almost black wand-like flower stalks with slender purple flower heads in late summer.To 90cm. Hardy [Collect Only]

Monarda 'Gardenview Scarlet' (Bee Balm/Bergamot 'Gardenview Scarlet'): Whorls of bright red flowers held above aromatic foliage. Hardy. To 70cm.

Monarda 'Jacob Cline' (Bee Balm/Bergamot 'Jacob Cline'): Whorls of the brightest imaginable red flowers over bright green aromatic foliage. Hardy. Up to 75cm.

Monarda 'Oneida' (Bee Balm/Bergamot 'Oneida'): Whorls of bright red flowers held above aromatic foliage.

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

Paeonia 'Flame' (Paeony 'Flame'): Rich and shiny scarlet red single flowers with a yellow centre. Glossy dark green leaves. Hardy. Up to 80cm. [Collect Only]

Paeonia 'Moonrise': Beautiful large single creamy white flowers with a big fluffy yellow centre. Highly scented. Glossy mid green leaves. Hardy. Up to 90cm. [Collect Only]

Paeonia lactiflora 'Sarah Bernhardt' (Paeony 'Sarah Bernhardt'): A gorgeous form with lightly scented, large double pale pink flowers. Glossy dark green leaves. It may require staking. Hardy. Up to 90cm. [Collect Only]

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

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

Persicaria amplexicaulis 'Fat Domino' (PBR) (Red bistort 'Fat Domino'): A cracking new variety with plump, dark rose-red flower spikes which last for ages. Robust and hardy. Up to 90cm [Collect Only]

Phlox paniculata 'Bright Eyes' (Phlox 'Bright Eyes'): Pink scented flowers with a darker pink eye. To 90cm. Hardy

Phlox paniculata 'Monica Lynden Bell' (Phlox 'Monica Lynden Bell'): Palest sorbet pink flowers, nicely scented. Not too tall

Polygonatum x hybridum (Solomon's seal (Syn. Polygonatum multiflorum)): Arching sprays of paired white bells, tinged with green in spring. To 70cm. Hardy. [Collect Only]

Polystichum setiferum 'Plumosum densum' (Soft shield fern): Soft bright green, evergreen fronds make this a wonderful space filler for shady spots and woodland gardens [Collect Only]

Rudbeckia fulgida var. deamii: Classic garden perennial flowering in mid-late summer with bright gold daisy flowers with black centres. Hardy. Up to 60cm.

Salvia nemorosa 'Amethyst' (Balkan Clary 'Amethyst'): Slender spires of long-lasting warm purple spikes from mid to late summer. To 90cm. Hardy.

Salvia x jamensis 'Nachtvlinder' (Sage 'Nachtvlinder'): Regal purple flowers on upright stems throughout late summer into autumn.

Salvia x sylvestris 'Mainacht' (Wood sage 'May Night'): Spikes of warm purplish blue flowers in mid-summer. Height to 70cm. Hardy. [Collect Only]

Sidalcea 'Sussex Beauty' (Prairie mallow 'Sussex Beauty'): Large candy pink flowers held on stiff upright stems above rounded green foliage.To 70cm. Hardy

Stokesia laevis 'Mary Gregory' (Stoke's aster 'Mary Gregory'): Large fluffy lemon yellow flowers in mid summer above slender green leaves. To 40cm. Hardy [Collect Only]

Thalictrum Nimbus Pink = 'Tntnp' (PBR) (Rue 'Nimbus Pink'): A new variety with dense clouds of fluffy lavender pink flowers on dark stems above grey-green ferny foliage like an aquilegia. Hardy. Up to 70cm. [Collect Only]

Thalictrum Nimbus White = 'Tntnw' (PBR) (Rue 'Nimbus White'): A new variety with dense clouds of fluffy white flowers on dark stems above grey-green ferny foliage like an aquilegia. Hardy. Up to 70cm. [Collect Only]

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

Verbena officinalis 'Bampton' (Vervain 'Bampton'): Attractive plant with dark purple foliage and upright, wiry stems with delicate purple flowers. Long flowering. Up to 90cm. Hardy.