We have found 18 plants that meet your criteria.

Aster novae-angliae 'Violetta' New England Aster Beautiful deep purple flowers £6.84 Buy
Price Pruned
Astrantia major var. rosea Masterwort Unusual, pale pink flowers NOW £5.86 Buy
Astrantia major 'Rubra' Masterwort Gorgeous plum-coloured flowers £5.86 Buy
Price Pruned
Digitalis purpurea 'Excelsior Group' Foxglove Perfect for a cottage-style garden NOW £5.37 Buy
Digitalis x mertonensis Foxglove Towering spikes of carmine flowers £5.86 Buy
Price Pruned
Monarda 'Ou Charm' Bergamot Pretty, pink flowers and purple bracts NOW £5.37 Buy
Crocus Special Offers
Nepeta × faassenii 'Kit Cat' Catmint A dwarf variety with purple flowers NOW £3.91 Buy
Crocus Special Offers
Phlox paniculata 'Franz Schubert' Phlox Wonderful, fragrant, lilac flowers NOW £4.88 Buy
Aster novi-belgii 'Purple Dome' Michaelmas Daisy Masses of violet-purple flowers in late summer £5.86 Buy
Buddleja davidii 'Black Knight' Butterfly Bush Sumptuous deep purple flowers £6.84 Buy
Fuchsia 'Riccartonii' Fuchsia Delicate, scarlet and dark purple flowers £5.86 Buy
Iris foetidissima Stinking Gladwyn Bright orange berries. Useful for dry shade £5.86 Buy
Liatris 'spicata' Gay Feather Unusual, bottlebrush-like flowers £5.37 Buy
Nepeta grandiflora 'Wild Cat' Giant Catmint A giant catmint with deep purple-blue flowers £5.86 Buy
Phlox paniculata 'Amethyst' Perennial Phlox Tall variety with violet flowers £5.86 Buy
Price Pruned
Polemonium caeruleum Jacob's Ladder Bell-shaped, lavender-blue flowers in early summer. NOW £4.88 Buy
Price Pruned
Viola odorata Sweet Violet Sweetly fragrant flowers NOW £4.88 Buy
Viola riviniana 'Purpurea Group' Wood Violet (syn. Viola labradonica... Ideal for a woodland garden £4.88 Buy