We have found 52 plants that meet your criteria.

Stinking Gladwyn ‘Iris foetidissima’ Bright orange berries. Useful for dry shade £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
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
Price Pruned
Jacob's Ladder ‘Polemonium caeruleum’ Bell-shaped, lavender-blue flowers in early summer. NOW £4.99 Buy
Price Pruned
Meadow Rue ‘Thalictrum aquilegiifolium’ Plumes of pale mauve flowers NOW £5.49 Buy
Culver's Root ‘Veronicastrum virginicum Lavendelturm’ Long tapering flower spires £5.49 Buy
Lesser Periwinkle ‘Vinca minor Atropurpurea’ Delicious dark damson-purple flowers £5.99 Buy
Price Pruned
Sweet Violet ‘Viola odorata’ Sweetly fragrant flowers NOW £4.99 Buy
Wood Violet (syn. Viola labradonica... ‘Viola riviniana Purpurea Group’ Ideal for a woodland garden £4.99 Buy