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 [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

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

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.

Campanula Iridescent Bells = 'Iribella' (PBR) (Bellflower 'Iridescent Bells'): Purple buds open to silvery-lilac bells in summer. Prefers a moisture retentive soil. Height to 80cm. Hardy [Collect Only]

Campanula persicifolia var. alba (Peach-leaved bellflower white flowered): Pure white large rounded cups on upright stems. 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

Cirsium 'Mount Etna' (Brook thistle 'Mount Etna'): White thistle flowers topped with soft pink held above typical thistley foliage.Very attractive to bees. Up to 80cm.

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.

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 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. [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 pratense 'Cloud Nine' (Meadow cranesbill 'Cloud Nine'): An attractive double form of the familiar meadow cranesbill with lovely soft blue flowers. Strong growing. Hardy. Up to 90cm.

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.

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

Hemerocallis 'Sammy Russell' (Day lily 'Sammy Russell'): Rich, bronzey-red flowers in mid-summer over strappy foliage. [Collect Only]

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

Iris sibirica (Siberian Iris): Soft, purplish blue iris flowers over strappy green foliage. [Collect Only]

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

Liatris spicata 'Kobold' (Gayfeather 'Kobold'): Plump spikes of purple flowers in mid to late summer. Likes dryish soil in a sunny spot. To 80cm. Hardy

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

Monarda 'Ou Charm' (Bee Balm/Bergamot 'Ou Charm'): Whorls of pale pink flowers with dark purple bracts above clumps of lance-like aromatic foliage. Attractive to bees. Hardy. Up to 90cm.

Monarda 'Squaw' (Bee Balm/Bergamot 'Squaw'): Whorls of bright red flowers held above aromatic foliage. [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 'Pensham Plum Jerkum': Plum-purple tubular flowers with white throat markings. Semi-evergreen in milder areas. Protect from hard frosts. To 70cm.

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

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

Sidalcea 'Elsie Heugh' (Prairie mallow 'Elsie Heugh'): Spikes of large clear pink flowers above rounded bright green leaves. To 80cm. Hardy

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

Sidalcea 'William Smith' (Prairie mallow 'William Smith'): Rich rose pink flowers on upright spikes in mid-summer. Round, glossy, semi-evergreen leaves. Hardy. Up to 90cm.

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