We have found 16 plants that meet your criteria.

Price Pruned
Yarrow ‘Achillea millefolium Lilac Beauty’ An unusual lilac, yarrow NOW £5.49 Buy
Price Pruned
Granny's Bonnet ‘Aquilegia vulgaris var. stellata Black Barlow’ Striking dark purple, double flowers NOW £4.99 Buy
Crocus Special Offers
Michaelmas Daisy ‘Aster turbinellus’ Sprays of violet blue flowers NOW £5.99 Buy
Dusky Cranesbill ‘Geranium phaeum’ Small, deep maroon flowers. Good for groundcover £5.99 Buy
Price Pruned
Dusky Cranesbill ‘Geranium phaeum var. phaeum Samobor’ Small, purple-black flowers. Good for damp or dry shade NOW £5.49 Buy
Cranesbill ‘Geranium pratense Midnight Reiter’ Unusual deep purple foliage £5.99 Buy
Geranium ‘Geranium sylvaticum Birch Lilac’ Great for a woodland setting £5.99 Buy
Jerusalem Sage ‘Phlomis tuberosa Amazone’ Whorls of lilac flowers and architectural seedheads £6.99 Buy
Price Pruned
Columbine ‘Aquilegia McKana Hybrids’ Bonnet-like flowers in a range of colours NOW £4.99 Buy
Granny's Bonnet ‘Aquilegia vulgaris William Guinness’ Unusual purple-black flowers £5.49 Buy
Price Pruned
Dusky Cranesbill ‘Geranium phaeum Lily Lovell’ Iridescent saucers of purple flowers. Good for shade NOW £5.49 Buy
Armenian Cranesbill ‘Geranium psilostemon’ Gorgeous magenta flowers with black centres £5.99 Buy
Stinking Gladwyn ‘Iris foetidissima’ Bright orange berries. Useful for dry shade £5.99 Buy
Phlomis ‘Phlomis cashmeriana’ Distinctive whorls of lilac flowers in high summer £5.99 Buy
Lesser Periwinkle ‘Vinca minor Atropurpurea’ Delicious dark damson-purple flowers £5.99 Buy
Wood Violet (syn. Viola labradonica... ‘Viola riviniana Purpurea Group’ Ideal for a woodland garden £4.99 Buy