We have found 44 plants that meet your criteria.

yarrow
Achillea millefolium 'Red Velvet' yarrow Deep red, flat heads of flowers and feathery foliage £6.99 Buy
African lily
Agapanthus africanus African lily Wonderful globes of blue flowers from midsummer £8.99 Buy
African lily
Agapanthus africanus 'Albus' African lily White globes of trumpet-shaped flowers £7.99 Buy
African lily
Agapanthus Back in Black ('B in B') (PBR) African lily Stunning, deep blue flowers... £9.99 Buy
African lily
Agapanthus 'Black Pantha' (PBR) African lily Deep blue, almost black flowers £11.99 Buy
African lily
Agapanthus Headbourne hybrids African lily Showy globes of blue flowers £8.99 Buy
Valerie Finnis artemisia
Artemisia ludoviciana 'Valerie Finnis' Valerie Finnis artemisia Very drought tolerant £7.99 Buy
wormwood
Artemisia 'Powis Castle' wormwood Silvery, aromatic foliage £8.99 Buy
spurge
Euphorbia characias subsp. wulfenii spurge Handsome tall evergreen with chartreuse flowers in spring £7.99 Buy
cranesbill
Geranium × oxonianum 'Wargrave Pink' cranesbill Fast-growing and long-flowering £6.99 Buy
cranesbill
Geranium phaeum 'Album' cranesbill Small, white nodding flowers. Will thrive in shade £12.99 Buy
dusky cranesbill
Geranium phaeum 'Lily Lovell' dusky cranesbill Iridescent saucers of purple flowers. Good for shade £7.99 Buy
wood cranesbill
Geranium sylvaticum 'Album' wood cranesbill Perfect for a wild garden or informal borders £6.99 Buy
Siberian iris
Iris sibirica 'Butter and Sugar' Siberian iris Large, white flowers. A lovely marginal... £8.49 Buy
Siberian iris
Iris sibirica 'Perry's Blue' Siberian iris Looks great planted in bold clumps £8.49 Buy
Siberian iris (syn. 'Alba')
Iris sibirica 'Snow Queen' Siberian iris (syn. 'Alba') Great for adding vertical interest £7.99 Buy
Siberian iris
Iris sibirica 'Tropic Night' Siberian iris Velvety, violet flowers with veined yellow throats £7.99 Buy
Siberian iris
Iris sibirica 'White Swirl' Siberian iris White flowers with unusual, flared petals. Lovely beside water £7.99 Buy
bearded iris
Iris 'Dutch Chocolate' bearded iris New variety with rich brown flowers £9.99 Buy
bearded iris
Iris 'Jane Phillips' bearded iris A popular variety with blue flowers £7.99 Buy