We have found 15 plants that meet your criteria.

Yarrow ‘Achillea Moonshine’ Lovely, large sulphur-yellow flowers £5.99 Buy
Plantain Lily ‘Hosta Big Daddy’ Enormous, grey-green, puckered leaves £5.99 Buy
Plantain Lily ‘Hosta Patriot’ White-margined leaves £5.99 Buy
Moor Grass ‘Sesleria autumnalis’ Perfect for informal edging £5.99 Buy
Yarrow ‘Achillea Summerwine’ Long-lasting, wine-red flowers £5.99 Buy
Price Pruned
Yarrow ‘Achillea Walther Funcke’ Bright, terracotta flowers with flat heads NOW £5.49 Buy
Price Pruned
African Lily ‘Agapanthus Peter Pan’ A compact variety with pale blue flowers NOW £9.99 Buy
Sea Holly ‘Eryngium bourgatii Picos Amethyst’ New variety with deep blue flowers £7.99 Buy
Plantain Lily ‘Hosta (Tardiana Group) June’ Luminous, blue-green leaves splashed with lime £5.99 Buy
Plantain Lily ‘Hosta Halcyon’ One of the bluest hostas £5.99 Buy
Plantain Lily ‘Hosta Royal Standard’ Fragrant white flowers £5.99 Buy
Plantain Lily ‘Hosta Wide Brim’ Dark green leaves with cream margins £5.99 Buy
Mathiasella ‘Mathiasella bupleuroides Green Dream’ An unusual architectural plant with jade-green, bell-like flowerheads £6.99 Buy
Plantain Lily ‘Hosta Blue Wedgwood’ Giant, glaucous, wavy-edged leaves £5.99 coming soon
Price Pruned
Plantain Lily ‘Hosta Fire and Ice’ A variegated variety with splashes of white NOW £5.99 coming soon