We have found 38 plants that meet your criteria.

Price Pruned
Yarrow ‘Achillea millefolium Lilac Beauty’ An unusual lilac, yarrow NOW £5.49 Buy
Hyssop ‘Agastache Black Adder’ Distinctive violet, bottlebrush flowers £5.99 Buy
Michaelmas Daisy ‘Aster pyrenaeus Lutetia’ One of the most reliable asters £5.49 Buy
Crocus Special Offers
Michaelmas Daisy ‘Aster turbinellus’ Sprays of violet blue flowers NOW £5.99 Buy
Butterfly Collection ‘Butterfly Collection’ Summer-flowering wildflowers £2.99 Buy
Price Pruned
Pink ‘Dianthus amurensis’ A mat-forming pink with mauve flowers NOW £4.99 Buy
Price Pruned
Coneflower ‘Echinacea purpurea Magnus’ Copes well with adverse weather conditions NOW £5.99 Buy
Erigeron ‘Erigeron Dunkelste Aller (Darkest of All)’ Large dark violet daisies £6.99 Buy
Cranesbill ‘Geranium pratense Midnight Reiter’ Unusual deep purple foliage £5.99 Buy
Field Scabious ‘Knautia arvensis’ A great nectar source for butterflies £1.25 Buy
Crocus Special Offers
Big Blue Lily-turf ‘Liriope muscari’ Purple, wand-like flowers and evergreen foliage NOW £5.99 Buy
Price Pruned
Bergamot ‘Monarda Ou Charm’ Pretty, pink flowers and purple bracts NOW £5.49 Buy
Catmint ‘Nepeta x faassenii Kit Cat’ A dwarf variety with purple flowers £5.99 Buy
Phlox ‘Phlox paniculata Franz Schubert’ Wonderful, fragrant, lilac flowers £5.99 Buy
Salvia ‘Salvia nemorosa Amethyst’ Lilac-purple spires of flowers £5.99 Buy
Moor Grass ‘Sesleria autumnalis’ Perfect for informal edging £5.99 Buy
Lamb's Ears ‘Stachys byzantina Big Ears’ Purple flowers large Grey-green leaves £5.49 Buy
Meadow Rue ‘Thalictrum delavayi’ Mauve-blue flowers purple stems £5.49 Buy
Verbena ‘Verbena bonariensis’ Lilac-purple flowers £5.49 Buy
Ironweed ‘Vernonia crinita’ Great plant for prairie-style planting £5.99 Buy