Armeria maritima 'Armada White' (Thrift 'Armada White'): An old fashioned cottage garden favourite. Makes a neat clump of evergreen foliage with white pom-pom flowers suffused with pink. Hardy. Height to 20cm.

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

Armeria maritima 'Splendens' (Thrift 'Splendens'): Cushion-forming with linear dark green leaves, bright carmine pink flowerheads. Max Height 25cm. Flowers May to June. Full sun. Hardy.

Deschampsia cespitosa (Tufted hair grass): Summer flowering grass with airy silvery purple flower heads which keep their structure long into winter. Hardy. Up to 1.2m.

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. [Collect Only]

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.

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. [Collect Only]

Dierama - white flowered (Angel's Fishing Rod): Arching white flowers with pink throat on wire-like stems. Grassy foliage. Looks lovely near water, in pots or over paths

Dierama pulcherrimum 'Alba' (Angel's Fishing Rod): Tall, wiry, arching stems with white nodding bells. Lovely near water or over paths. To 1.5m. [Collect Only]

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.

Digitalis x mertonensis (Strawberry foxglove): Large, dusky pink flowers on sturdy spikes in mid-summer. Hardy. To 90cm.

Eryngium bourgatii 'Picos Amethyst'': Stunning steely blue flowers on stiff stems with a gorgeous purple tint.

Eryngium bourgatii 'Picos Blue' (PBR) (Sea Holly 'Picos Blue'): Stunning steely blue flowers on blue stems. Spiny glaucous foliage. Loves sunshine and very well-drained gritty soil. Hardy. Up to 60cm.

Eryngium ebracteatum var. poterioides: Tall and evergreen with attractive blue-green foliage and wiry stems of red-brown bobble-like flowers, Sanguisorba-like. Hardy. Up to 1.5m.

Eryngium planum 'Blue Hobbit' (Sea Holly 'Blue Hobbit'): A more compact form with steely blue flowers on dark stems. Spiny glaucous foliage. Loves sunshine and very well-drained gritty soil. Hardy. Up to 30cm. [Collect Only]

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.

Euphorbia mellifera (Honey spurge): A stately plant which makes a dramatic feature in sheltered spots. [Collect Only]

Gaura lindheimeri 'Elurra': A more compact form with airy wands of white flowers. Best in full sun, in well drained soil and a sheltered spot. Up to 50cm.

Gaura lindheimeri 'The Bride': Beautiful airy stems of white flowers in mid to late summer [Collect Only]

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

Gillenia trifoliata (Bowman's root): Lovely plant with starry white flowers held high over elegant foliage. Great in light shade. Hardy. [Collect Only]

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

Lychnis chalcedonica 'Carnea' (Maltese Cross 'Carnea'): A more subtle form of the Maltese Cross with domes of pale peach pink flowers with four petals, hence its common name. Hardy. Up to 100cm.

Lychnis coronaria Atrosanguinea Group (Rose campion (dark red)): Bright magenta flowers over felty, silver foliage. Great for sunny, dry areas can be short lived in a wet, cold winter. To 1.2m Hardy. [Collect Only]

Origanum 'Rosenkuppel' (Oregano 'Rosenkuppel'): A lovely cultivar with scented foliage and erect stems with dark pink/purple flowers. Loved by bees and butterflies. Non-edible form. Hardy. Up to 60cm.

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

Thalictrum delavayi 'Album' (Chinese meadow rue 'Album'): Dainty cup-shaped white flowers held high above fern-like greyish green leaves. To 1.2m. Hardy [Collect Only]

Thalictrum delavayi 'Hewitt's Double' (Chinese meadow rue 'Hewitt's Double'): Tiny purple pom-pom flowers dance airily above ferny grey-green foliage. Height to 1.2m. Hardy [Collect Only]

Verbena bonariensis: Tall, airy but strong slender stems with flat heads of purple flowers in mid to late summer. To 1.8m. Frost-hardy.

Verbena hastata 'Alba' (American blue vervain 'Alba'): Tall, branched stems like a candelabra with spikes of small white flowers loved by bees. Needs a sheltered spot & full sun. Up to 1.2m. [Collect Only]

Verbena hastata 'Rosea' (American blue vervain 'Rosea'): Tall, branched stems like a candelabra with spikes of small pink flowers loved by bees. Needs a sheltered spot in full sun. Up to 1.2m. [Collect Only]

Veronicastrum 'Red Arrows' (Culver's Root 'Red Arrows'): Reddish-pink flower spikes open to lilac, over rising whorls of pointed green leaves. To 1.4m. Hardy [Collect Only]