We have found 36 plants that meet your criteria.

Price Pruned
Acanthus mollis Bear's Breeches Spectacular architectural plant with stunning flowers NOW £5.37 Buy
Price Pruned
Acanthus spinosus Bear's Breeches A stunning architectural plant NOW £5.37 Buy
Price Pruned
Achillea millefolium 'Lilac Beauty' Yarrow An unusual lilac, yarrow NOW £5.37 Buy
Achillea millefolium 'Red Velvet' Yarrow Deep red, flat heads of flowers and feathery foliage £5.37 Buy
Agapanthus africanus African Lily Globes of blue flowers in late summer £6.84 Buy
Agapanthus 'Headbourne hybrids' African Lily Showy globes of blue and white flowers £6.84 Buy
Artemisia ludoviciana 'Valerie Finnis' Valerie Finnis Artemisia Very drought tolerant £5.37 Buy
Artemisia 'Powis Castle' Wormwood Silvery, aromatic foliage £5.37 Buy
Echinops bannaticus 'Blue Globe' Globe Thistle Large globes of dark blue flowers £5.86 Buy
Echinops ritro 'Veitch's Blue' Globe Thistle Good for repeat flowering £5.86 Buy
Euphorbia 'Blackbird' Wood Spurge A fairly recent introduction £7.82 Buy
Iris sibirica 'Caesar's Brother' Siberian Iris Intense violet flowers. Great in boggy ground £5.86 Buy
Iris sibirica 'Silver Edge' Siberian Flag Blue flowers edged with white £5.86 Buy
Iris sibirica 'Snow Queen' Beardless Siberian Iris (syn. I.... Great for adding vertical interest £5.86 Buy
Iris sibirica 'White Swirl' Siberian Iris White flowers with unusual, flared petals. Lovely beside water £5.86 Buy
Phlomis fruticosa Jerusalem Sage Evergreen shrub with whorls of yellow flowers £5.86 Buy
Phlomis russeliana Phlomis Pretty whorls of pale yellow flowers £6.84 Buy
Phlomis tuberosa 'Amazone' Jerusalem Sage Whorls of lilac flowers and architectural seedheads £6.84 Buy
Agapanthus africanus 'Albus' African Lily White globes of trumpet-shaped flowers £6.84 Buy
Cistus x argenteus 'Silver Pink' Rock Rose A free-flowering variety £7.82 Buy