We have found 17 plants that meet your criteria.

Agastache 'Black Adder' Hyssop Distinctive violet, bottlebrush flowers £5.86 Buy
Price Pruned
Allium cristophii star of Persia Huge globes of star-like, lilac flowers NOW £5.86 Buy
Crocus Special Offers
Allium sphaerocephalon round-headed leek Small, wine-coloured flowers on tall stems NOW £5.86 Buy
Angelica gigas Angelica Tall, dramatic burgundy flowers £6.84 Buy
Price Pruned
Dianthus amurensis Pink A mat-forming pink with mauve flowers NOW £4.88 Buy
Geranium macrorrhizum 'Bevan's Variety' Balkan Cranesbill Magenta flowers. Perfect for suppressing weeds £5.86 Buy
Price Pruned
Monarda 'Ou Charm' Bergamot Pretty, pink flowers and purple bracts NOW £5.37 Buy
Nepeta x faassenii 'Kit Cat' Catmint A dwarf variety with purple flowers £5.86 Buy
Salvia nemorosa 'Amethyst' Salvia Lilac-purple spires of flowers £5.86 Buy
Salvia nemorosa 'Caradonna' Salvia Dazzling purple blooms £5.86 Buy
Salvia x sylvestris 'Viola Klose' Salvia Intense spires of dark violet flowers £5.86 Buy
Allium schoenoprasum chives Edible leaves and purple, button flowers £4.99 Buy
Nepeta grandiflora 'Wild Cat' Giant Catmint A giant catmint with deep purple-blue flowers £5.86 Buy
Nepeta racemosa 'Walker's Low' Catnip Long flowering period £5.86 Buy
Phlox paniculata 'Amethyst' Perennial Phlox Tall variety with violet flowers £5.86 Buy
Salvia nemorosa 'Ostfriesland' Sage Attractive to butterflies and bees £5.86 Buy
Price Pruned
Viola odorata Sweet Violet Sweetly fragrant flowers NOW £4.88 Buy