We have found 15 plants that meet your criteria.

Bugbane (syn. Cimicifuga) ‘Actaea simplex Pink Spike’ Dramatic pink flower spikes in autumn £5.99 Buy
Aster ‘Aster lateriflorus Lady in Black’ Masses of tiny, pink-tinged daisies £5.99 Buy
Price Pruned
Coral Flower ‘Heuchera villosa Palace Purple’ Striking, shiny, burgundy leaves NOW £5.49 Buy
Rodgersia ‘Rodgersia pinnata Chocolate Wing’ Rich chocolate brown leaves are produced in the spring. £5.99 Buy
Orpine ‘Sedum Matrona’ Looks good with ornamental grasses £5.49 Buy
Ice Plant ‘Sedum spurium Fuldaglut’ Bronze-red foliage and rosy-red flowers £5.99 Buy
Chocolate Clover ‘Trifolium repens William’ a carpet of colour £5.99 Buy
Price Pruned
Smoke Bush ‘Cotinus Grace’ Fiery autumn colour NOW £9.49 Buy
Coral Flower ‘Heuchera Plum Pudding’ Silver dusted, deep purple leaves £5.99 Buy
Crab Apple ‘Malus Royalty’ Magnificent dark purple foliage and crimson flowers £34.99 Buy
Crab Apple ‘Malus x moerlandsii Profusion’ Deep pink flowers and purple leaves £34.99 Buy
Price Pruned
Black-leaved Plum ‘Prunus cerasifera Nigra’ Purple leaves and white blossom in spring. NOW £29.99 Buy
Black Elder (syn. Black... ‘Sambucus nigra Eva’ A striking plant with dramatic almost black,... £8.99 Buy
Black Elder (syn. Black Beauty)... ‘Sambucus nigra Gerda’ Dramatic purple foliage £8.99 Buy
American Redbud ‘Cercis canadensis Forest Pansy’ Deep purple foliage £49.99 coming soon