We have found 102 plants that meet your criteria.

Hyssop ‘Agastache Black Adder’ Distinctive violet, bottlebrush flowers £5.45 Buy
Angelica ‘Angelica gigas’ Tall, dramatic burgundy flowers £6.95 Buy
Price Pruned
Granny's Bonnet ‘Aquilegia vulgaris var. stellata Black Barlow’ Striking dark purple, double flowers NOW £4.95 Buy
New England Aster ‘Aster novae-angliae Violetta’ Beautiful deep purple flowers £5.95 Buy
Michaelmas Daisy ‘Aster novi-belgii Purple Dome’ Masses of violet-purple flowers in late summer £5.95 Buy
Michaelmas Daisy ‘Aster pyrenaeus Lutetia’ One of the most reliable asters £5.45 Buy
Michaelmas Daisy ‘Aster sedifolius nanus’ A small plant that has big impact £5.95 Buy
Crocus Special Offers
Michaelmas Daisy ‘Aster turbinellus’ Sprays of violet blue flowers NOW £3.95 Buy
Masterwort ‘Astrantia major Rubra’ Gorgeous plum-coloured flowers £5.95 Buy
Price Pruned
Dalmatian Bellflower ‘Campanula portenschlagiana’ Vigorous and low-growing NOW £4.95 Buy
Cardoon ‘Cynara cardunculus Cardy’ A fabulous architectural plant £5.95 Buy
Price Pruned
Delphinium ‘Delphinium Walton Gemstone’ White flowers with a lavender blush NOW £7.95 Buy
Price Pruned
Foxglove ‘Digitalis purpurea Excelsior Group’ Perfect for a cottage-style garden NOW £5.45 Buy
Price Pruned
Foxglove ‘Digitalis x mertonensis’ Towering spikes of carmine flowers NOW £5.45 Buy
Crocus Special Offers
Pride of Madeira ‘Echium candicans’ Dramatic purple spikes in early summer. Drought tolerant NOW £3.45 Buy
Tower of Jewels ‘Echium pininana’ Enormous spikes of blue flowers £6.95 Buy
Pineapple Lily ‘Eucomis bicolor’ Huge, exotic, spiky flowers £6.95 Buy
Siberian Iris ‘Iris chrysographes’ Deep purple flowers. Gorgeous beside water £6.95 Buy
Siberian Iris ‘Iris chrysographes black-flowered’ Stunning, almost black flowers. For a damp spot £6.95 Buy
Intermediate Bearded Iris ‘Iris Langport Flame’ Sumptuous purple and orange fragrant flowers £6.95 Buy