We have found 12 plants that meet your criteria.

Hyssop ‘Agastache Black Adder’ Distinctive violet, bottlebrush flowers £5.99 Buy
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
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
Verbena ‘Verbena bonariensis’ Lilac-purple flowers £5.49 Buy
Michaelmas Daisy ‘Aster novi-belgii Purple Dome’ Masses of violet-purple flowers in late summer £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
Perennial Phlox ‘Phlox paniculata Amethyst’ Tall variety with violet flowers £5.99 Buy
Lesser Periwinkle ‘Vinca minor Atropurpurea’ Delicious dark damson-purple flowers £5.99 Buy