We have found 225 plants that meet your criteria.

purple moor grass
Molinia caerulea subsp. arundinacea 'Poul Petersen' purple moor grass A recent UK introduction £7.99 Buy
bergamot
Monarda 'Scorpion' bergamot Velvety whorls of violet-purple flowers £7.99 Buy
catnip
Nepeta racemosa 'Walker's Low' catnip Long flowering period £7.99 Buy
Crocus Special Offers
tree peony (syn Mulberry Purple)
Paeonia suffruticosa 'Shen Hei Zi' tree peony (syn Mulberry Purple)... Sumptuous, rounded blooms NOW £14.99 Buy
Crocus Special Offers
tree peony (syn Glossy Black)
Paeonia suffruticosa 'Wu Fin Yao Hui' tree peony (syn Glossy Black)... Sumptuous, near-black blooms NOW £14.99 Buy
beard tongue
Penstemon 'Pensham Czar' beard tongue Lashings of long-lasting colour £7.99 Buy
beard tongue
Penstemon 'Pensham Plum Jerkum' beard tongue Opulent and luscious £7.99 Buy
phlox
Phlox divaricata subsp. laphamii 'Chattahoochee' phlox Masses of lilac flowers. Perfect in partial shade £7.99 Buy
border phlox
Phlox paniculata L. 'Amethyst' border phlox Tall variety with violet flowers £7.99 Buy
perennial phlox
Phlox paniculata 'Windsor' perennial phlox The flowers have a heady scent £7.99 Buy
Crocus Special Offers
kohuhu
Pittosporum tenuifolium 'Variegata' kohuhu Large, pretty evergreen with wavy, variegated leaves. NOW £6.49 Buy
Jacobs ladder
Polemonium caeruleum Jacobs ladder Bell-shaped, lavender-blue flowers in early summer. £6.99 Buy
drumstick primrose
Primula denticulata drumstick primrose Wands of bright purple, pompom flowers. £7.99 Buy
Price Pruned
primula
Primula japonica 'Miller's Crimson' primula Rich reddish-purple flowers NOW £5.99 Buy
New
Vial's primrose
Primula vialii Vial's primrose Spikes of striking, vivid flowers. £4.99 Buy
Vial's primrose
Primula vialii Vial's primrose Spikes of striking, vivid flowers. £6.99 Buy
Crocus Special Offers
rose Roseraie de l'Haÿ (shrub)
Rosa 'Roseraie de l'Haÿ' rose Roseraie de l'Haÿ (shrub)... Fabulously rich purple-red blooms NOW £12.49 Buy
salvia
Salvia × sylvestris 'Viola Klose' salvia Intense spires of dark violet flowers £7.99 Buy
Balkan clary
Salvia nemorosa 'Amethyst' Balkan clary Lilac-purple spires of flowers £7.99 Buy
Crocus Special Offers
sage
Salvia nemorosa 'Caradonna' sage Dazzling purple blooms NOW £5.99 Buy