We have found 10 plants that meet your criteria.

Cranesbill ‘Geranium pratense Midnight Reiter’ Unusual deep purple foliage £5.99 Buy
Crocus Special Offers
Big Blue Lily-turf ‘Liriope muscari’ Purple, wand-like flowers and evergreen foliage NOW £5.99 Buy
Meadow Rue ‘Thalictrum delavayi’ Mauve-blue flowers purple stems £5.49 Buy
Price Pruned
Milky Bellflower ‘Campanula lactiflora Loddon Anna’ Soft lilac flowers on tall stems NOW £4.99 Buy
Balkan Cranesbill ‘Geranium macrorrhizum Bevan's Variety’ Magenta flowers. Perfect for suppressing weeds £5.99 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
Wildflower Plug Plant Collection ‘Wildflowers for a shady meadow’ A collection of 104... £79.99 Buy
Toad Lily ‘Tricyrtis formosana Dark Beauty’ Great for adding an exotic look £6.99 coming soon
Price Pruned
Culver's Root ‘Veronicastrum virginicum Temptation’ Striking rose-purple spikes NOW £5.49 coming soon