We have found 115 plants that meet your criteria.

Globe Thistle ‘Echinops bannaticus Taplow Blue’ Spherical, bright blue flower-heads £5.99 Buy
Globe Thistle ‘Echinops ritro Veitch's Blue’ Good for repeat flowering £5.99 Buy
Sea Holly ‘Eryngium bourgatii Picos Amethyst’ New variety with deep blue flowers £7.99 Buy
Sea Holly (Eryngium planum Blue... ‘Eryngium planum Blauer Zwerg’ Dwarf variety with deep blue flowers £5.49 Buy
Cranesbill ‘Geranium (Cinereum Group) Ballerina’ A dwarf variety with pink, veined flowers £5.49 Buy
Bloody Cranesbill ‘Geranium sanguineum’ Magenta flowers. Good in acid soil £5.49 Buy
Striped Bloody Cranesbill ‘Geranium sanguineum var. striatum’ Long-flowering, compact and drought-tolerant £5.99 Buy
Sneezeweed (syn Indian Summer) ‘Helenium Indianersommer’ Looks great with ornamental grasses £6.99 Buy
Stinking Gladwyn ‘Iris foetidissima’ Bright orange berries. Useful for dry shade £5.99 Buy
Price Pruned
Bergamot ‘Monarda Beauty of Cobham’ Long flowering and great with grasses NOW £5.49 Buy
Bergamot ‘Monarda Croftway Pink’ Delicate pale pink flower whorls £5.99 Buy
Giant Catmint ‘Nepeta grandiflora Wild Cat’ A giant catmint with deep purple-blue flowers £5.99 Buy
Price Pruned
Catmint ‘Nepeta Six Hills Giant’ A hardy catmint with lavender flowers NOW £4.99 Buy
Price Pruned
Beard Tongue ‘Penstemon Raven’ Dramatic, deep purple, foxglove-like flowers NOW £5.49 Buy
Beard Tongue ‘Penstemon Sour Grapes’ Greyish-blue flowers with metallic sheen £5.49 Buy
Beard Tongue ‘Penstemon Southgate Gem’ Lilac, foxglove-like flowers. Long flowering £5.49 Buy
Price Pruned
Beard Tongue ‘Penstemon White Bedder’ Large, white, foxglove-like flowers NOW £5.49 Buy
Russian Sage ‘Perovskia abrotanoides’ Silvery white aromatic foliage with long lasting blue flowers £7.99 Buy
Price Pruned
Russian Sage ‘Perovskia atriplicifolia Little Spire’ A shorter form of the popular Russian sage NOW £7.99 Buy
Perennial Phlox ‘Phlox paniculata Amethyst’ Tall variety with violet flowers £5.99 Buy