We have found 113 plants that meet your criteria.

Cardoon ‘Cynara cardunculus Cardy’ A fabulous architectural plant £5.99 Buy
Price Pruned
Delphinium ‘Delphinium Black Knight Group’ Spikes of dark purple flowers with black centres NOW £5.99 Buy
Tower of Jewels ‘Echium pininana’ Enormous spikes of blue flowers £6.99 Buy
Wallflower ‘Erysimum Bowles' Mauve’ Stunning mauve flowers £5.99 Buy
Geranium ‘Geranium x magnificum’ Larger sized violet-blue flowers £6.99 Buy
Siberian Iris ‘Iris chrysographes’ Deep purple flowers. Gorgeous beside water £6.99 Buy
Bearded Iris ‘Iris Dusky Challenger’ Huge ruffled silky rich purple-blue blooms £6.99 Buy
Intermediate Bearded Iris ‘Iris Langport Wren’ Dark magenta flowers. Very free flowering £6.99 Buy
Bearded Iris ‘Iris Provencal’ Burgundy flowers speckled with yellow £5.99 Buy
Price Pruned
Bearded Iris ‘Iris Superstition’ Purple-black flowers NOW £5.99 Buy
Everlasting Sweet Pea (syn. L... ‘Lathyrus latifolius Pink Pearl’ Vigorous climber with magenta flowers £5.99 Buy
Price Pruned
Gay Feather ‘Liatris spicata Kobold’ Magenta, bottlebrush-like flowers NOW £5.49 Buy
Giant Catmint ‘Nepeta grandiflora Wild Cat’ A giant catmint with deep purple-blue flowers £5.99 Buy
Oriental Poppy ‘Papaver orientale Manhattan’ Beaufitul lavender-rose flowers £5.99 Buy
Phlomis ‘Phlomis cashmeriana’ Distinctive whorls of lilac flowers in high summer £5.99 Buy
Perennial Phlox ‘Phlox paniculata Amethyst’ Tall variety with violet flowers £5.99 Buy
Phlox ‘Phlox paniculata Franz Schubert’ Wonderful, fragrant, lilac flowers £5.99 Buy
Price Pruned
Jacob's Ladder ‘Polemonium caeruleum’ Bell-shaped, lavender-blue flowers in early summer. NOW £4.99 Buy
Price Pruned
Primrose ‘Primula vialli’ Spikes of striking, vivid flowers. NOW £4.99 Buy
Sage ‘Salvia nemorosa Ostfriesland’ Attractive to butterflies and bees £5.99 Buy