Centaurea orientalis: Bright yellow flowers emerge from attractive papery buds. Prefers a well-drained soil and a sunny spot. Attractive to bees. Hardy. Up to 90cm.

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

Geum 'Mrs Bradshaw' (Avens 'Mrs Bradshaw'): Large double crimson-orange flowers in early-summer - a very eye-catching plant. Height to 70cm. Hardy

Hemerocallis 'Night Embers' (Day Lily 'Night Embers'): Large double red flowers with ruffled petals and a white edging, grass-like, strappy green foliage. Hardy. Up to 75cm. [Collect Only]

Iris 'Langport Wren': Sword-shaped glaucous green leaves and stems of up to 4 flowers, with rich reddish-purple and deep maroon almost brown flowers. [Collect Only]

Iris sibirica 'Perry's Blue' (Siberian Iris 'Perry's Blue'): Lovely pale-blue flowers with white markings over strappy green foliage. Prefers moist soil. Makes a bold clump. Hardy. Up to 85cm.

Libertia grandiflora (Libertia): Starry white flowers above stiff, slender strappy green foliage. To 90cm.

Lythrum virgatum 'The Rocket' (Wand loosestrife 'The Rocket'): Slender upright spires of deep pink flowers from early to late summer. Likes moist conditions. Hardy. Up to 90cm. [Collect Only]

Melica altissima 'Atropurpurea': Deciduous grass with green strappy leaves and large feathery purple flowers. Good for drying and as a cut flower. Hardy. Up to 80cm.

Melica altissmima 'Alba': Deciduous grass with green strappy leaves and delicate sprays of white flowers. Very tactile plant. Hardy. Up to 90cm.

Papaver orientale 'Patty's Plum' (Oriental poppy 'Patty's Plum'): Huge sultry, antique bronzey purple flowers held above green hairy leaves

Thermopsis rhombifolia var. montana: Lupin-like with sunny yellow pea-like flowers and bright green foliage. Flowers followed by velvety-brown seed pods. Hardy. Up to 90cm.

Veronica 'Purpleicious Harmony' (PBR) (Spiked speedwell 'Purpleicious'): Spikes of dark-purple flowers over a mound of shiny green leaves. Long-flowering and excellent as a cut flower. Hardy. Up to 50cm. [Collect Only]