Cichorium intybus (Wild chicory): Large cup shaped white flowers over soft ferny foliage. Thrives in sunny, well drained spots. To 2m

Deschampsia cespitosa 'Goldschleier' (Tufted hair grass 'Goldschleier'): Summer flowering grass. Airy golden flower heads keep their structure long into winter. Hardy. Up to 1m.

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.

Deschampsia cespitosa 'Schottland': Summer flowering grass with dark green leaves and airy silvery purple flower heads, keep their structure long into winter. Hardy. Up to 1.2m. [Collect Only]

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.

Dierama 'Blackberry Bells' (Angel's Fishing Rod): Large bells of deep-purple maroon flowers held on tall, slender stems above grass-like foliage. Hardy. To 1.2m

Dierama 'Snow Bells' (white angel's fishing rod): Tall, wiry, arching stems with white nodding bells. Grassy foliage. Likes well-drained soil that doesn't dry out. Hardy. Up to 1.5m.

Dierama pulcherrimum (Angel's Fishing Rod): Tall, wiry, arching stems with soft pink nodding bells. Likes well-drained soil that doesn't dry out. Lovely near water or over paths. To 1.5m.

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

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.

Francoa sonchifolia (Bridal wreath): Spires of pale pink flowers over semi-evergreen, pinkish-green foliage.

Gaura lindheimeri 'The Bride': Beautiful airy stems of white flowers in mid to late summer. Best in full sun, in well drained soil and a sheltered spot. Stems up to 1m.

Gaura lindheimeri Karalee White ('Nugauwhite' PBR): Beautiful airy stems of white flowers in mid to late summer. Best in full sun and a sheltered spot. Shorter than some cultivars with stems up to 60cm.

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

Heuchera 'Paris': Green leaves, attractive silver markings and coral red flower spikes in mid summer. All-round attractive plant

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]

Paeonia officinalis 'Rubra Plena' (Peony 'Rubra Plena'): Large heart-shaped leaves with strong silver colouration with green veins. Sprays of forget-me-not blue flowers. Hardy. Up to 30cm. [Collect Only]

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.

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

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

Salvia 'Amistad' PBR (Sage 'Amistad'): Tender perennial deep purple tubular flowers with a dark black calyx. Flowering from early summer to first frosts. Deadhead to prolong flowering. Up to 1.2m.

Salvia 'Hot Lips' (Sage 'Hot Lips'): Bicolour flowers in white and lipstick red and delicious scented foliage. Half-hardy, copes with -5C in a sheltered spot. To 1m.

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