We have found 26 plants that meet your criteria.

Bugbane (syn. Cimicifuga) ‘Actaea simplex Atropurpurea Group’ A late-flowering perennial for shade £8.99 Buy
Price Pruned
Bugbane (syn. Cimicifuga) ‘Actaea simplex Brunette’ Tall, dramatic flower spikes in early autumn NOW £12.99 Buy
Bugbane (syn. Cimicifuga) ‘Actaea simplex Pink Spike’ Dramatic pink flower spikes in autumn £5.99 Buy
Price Pruned
Bugle ‘Ajuga reptans Atropurpurea’ Good groundcover for shade NOW £3.99 Buy
Price Pruned
Bugle ‘Ajuga reptans Catlin's Giant’ Handsome evergreen ground cover NOW £4.99 Buy
Cow Parsley ‘Anthriscus sylvestris Ravenswing’ Lacy purple foliage with a sprinkling of white flowers £6.99 Buy
Wood Spurge ‘Euphorbia amygdaloides Purpurea’ Lovely deep purple foliage and acid-yellow flowers £5.49 Buy
Cranesbill ‘Geranium pratense Midnight Reiter’ Unusual deep purple foliage £5.99 Buy
Crocus Special Offers
Black Lilyturf ‘Ophiopogon planiscapus Nigrescens’ Almost black, grassy foliage NOW £3.99 Buy
Rodgersia ‘Rodgersia pinnata Chocolate Wing’ Rich chocolate brown leaves are produced in the spring. £5.99 Buy
Black Elder (syn. Black Beauty)... ‘Sambucus nigra Gerda’ Dramatic purple foliage £8.99 Buy
Chocolate Clover ‘Trifolium repens William’ a carpet of colour £5.99 Buy
Price Pruned
Japanese Maple ‘Acer palmatum Atropurpureum’ An elegant, small tree NOW £13.99 Buy
Price Pruned
Japanese Maple ‘Acer palmatum Bloodgood’ Purple leaves and lovely autumn colour NOW £15.99 Buy
Price Pruned
Japanese Maple ‘Acer palmatum var. dissectum Atropurpureum Group’ A compact tree with feathery, purple leaves NOW £15.99 Buy
Price Pruned
Japanese Maple ‘Acer palmatum var. dissectum Crimson Queen’ Feathery, red-purple leaves and good autumn colour NOW £15.99 Buy
Price Pruned
Japanese Maple ‘Acer palmatum var. dissectum Inaba-shidare’ Spectacular burgundy leaves that turn crimson in autumn NOW £15.99 Buy
Price Pruned
Norway Maple ‘Acer platanoides Crimson King’ A large handsome tree with attractive foliage NOW £37.99 Buy
Price Pruned
Norway Maple ‘Acer platanoides Crimson Sentry’ Interesting tree due to its habit NOW £37.99 Buy
New
Black Tree Aeonium ‘Aeonium Zwartkop’ Striking foliage colour £6.99 Buy