Acanthus hungaricus (Long-leaved bear's breeches): Architectural spires of purple/white flowers over large, dark green deeply divided leaves. Best in sun or light shade. Height to 1.2m [Collect Only]

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

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 '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

Achillea millefolium 'Red Velvet' (Yarrow 'Red Velvet'): Superb ruby red flowers over ferny green foliage. Doesn't fade with age. In flower late June to Sept. Height to 60cm.

Achillea ptarmica 'The Pearl' (Yarrow 'The Pearl): Tight buttons of white flowers, ferny grey/green foliage. Prefers full sun and light well-drained soil. Hardy. Up to 60cm.

Alchemilla erythropoda (Dwarf Lady's Mantle): Compact form of familiar Lady's Mantle .Makes excellent ground cover in fairly sunny or semi-shaded spots. Hardy. Up to 20cm.

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

Anthemis tinctoria 'E.C. Buxton' (Dyer's chamomile 'E.C. Buxton'): Masses of creamy lemon yellow flowers with gold eye over finely divided foliage. To 50cm. Hardy.

Anthemis tinctoria 'Lemon Ice' (Dyer's chamomile 'Lemon Ice'): Creamy daisy flowers with a deep yellow centre. Ferny greyish green foliage. Excellent in sunny, dryish spots. Up to 45cm

Anthemis tinctoria 'Sauce Hollandaise' (Dyer's chamomile 'Sauce Hollandaise'): Lemon daisy flowers with a deep yellow centre. Excellent in sunny, dryish spots. Doesn't like wet soils. Hardy. Up to 50cm.

Anthyllis vulneraria var. coccinea: Forms low mounds of frondy foliage with masses of scarlet, pea-like flowers.

Catananche caerulea (Cupid's dart): Masses of papery lavender blue flowers held on wiry stems all summer. Seed heads turn silver in late summer. Good dried flower. Up to 60cm.

Catananche caerulea 'Alba' (Cupid's Dart (White)): Papery white flowers above slender grey-green foliage. Flower heads retains attractive form through winter. To 60cm. Hardy

Catananche caerulea 'Major' (Cupid's dart 'Major'): Masses of papery blue flowers held on wiry stems all summer. Seed heads turn silver in late summer.

Centaurea 'Jordy' (Perennial cornflower 'Jordy'): Beautiful maroon-purple flowers over felty silvery-green foliage.

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

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. To 40cm. Hardy

Centaurea montana 'Purple Heart' (Perennial cornflower 'Purple Heart'): Large white cornflower-like flowers with violet central markings. To 30cm. Hardy

Dianthus cruentus (Blood pink): Deepest red flowers held on airy stems above grassy foliage. [Collect Only]

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.

Kniphofia 'Alcazar' (Red hot poker 'Alcazar'): Tall spikes of vibrant red-orange flowers opening to a paler yellow to give a two-tone effect. Strappy green foliage. Hardy. Up to 1.2m.

Kniphofia 'Bees Lemon' (Red hot poker 'Bees Lemon'): Short lemony green flower spikes over slender foliage. To 90cm. Hardy. [Collect Only]

Ligusticum scoticum (Scottish Lovage): Native plant with white umbels above mound of green leaves. Celery like leaves. Up to 60cm. Hardy

Origanum 'Kent Beauty' (Marjoram 'Kent Beauty'): Largely grown for it's attractive flowers which hang from this low growing plant like pink hops.

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.

Perovskia 'Blue Spire' (Russian Sage 'Blue Spire'): Fine spikes of purple flowers on silver stems. Lovely winter stem effect. Hardy. Up to 1m.

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

Phlomis tuberosa 'Amazone': Tall spikes bearing whorls of pink spikes in mid-summer. Hardy. To 1.5m [Collect Only]

Potentilla atrosanguinea (Cinquefoil): Bright scarlet flowers over silvery foliage. Great for stony or poor soils in full sun.To 20cm. Hardy.