We have found 20 plants that meet your criteria.

Windflower ‘Anemone hupehensis var. japonica Pamina’ A profusion of dark pink, double flowers £5.99 Buy
Granny's Bonnet ‘Aquilegia vulgaris var. stellata Ruby Port’ Stunning, double, ruby-red flowers £5.99 Buy
Michaelmas Daisy ‘Aster novae-angliae Lou Williams’ Large crimson-red daisies £5.99 Buy
Michalmas Daisy ‘Aster novi-belgii Freda Ballard’ Masses of rose-red semi-double flowers. £5.99 Buy
Price Pruned
False Goatsbeard ‘Astilbe x arendsii Fanal’ Fluffy, wine-red flower spires NOW £4.99 Buy
Masterwort ‘Astrantia Hadspen Blood’ Sultry, dark red flowers £6.99 Buy
Price Pruned
Spurge ‘Euphorbia griffithii Fireglow’ Deep orange flowers. Perfect in a border of hot colours NOW £6.49 Buy
Rodgersia ‘Rodgersia pinnata Chocolate Wing’ Rich chocolate brown leaves are produced in the spring. £5.99 Buy
Price Pruned
Columbine ‘Aquilegia McKana Hybrids’ Bonnet-like flowers in a range of colours NOW £4.99 Buy
Michaelmas Daisy ‘Aster novi-belgii Crimson Brocade’ Pretty semi-double, crimson flowers £5.99 Buy
Masterwort ‘Astrantia Dark Shiny Eyes’ Unusual red and silver flowers £6.99 Buy
Price Pruned
Masterwort ‘Astrantia major Claret’ One of the darkest astrantias NOW £6.99 Buy
Price Pruned
Montbretia ‘Crocosmia Lucifer’ Bright red flowers are ideal cut flowers NOW £5.49 Buy
Spurge ‘Euphorbia griffithii Dixter’ Brick-Red flowers. Ideal for a 'hot' border £6.99 Buy
Price Pruned
Chile Rhubarb ‘Gunnera manicata’ Dramatic, huge leaves. Great beside water NOW £6.99 Buy
Harvington Hellebore ‘Helleborus x hybridus Harvington Red’ Rich red flower colour £9.99 Buy
Harvington Hellebore ‘Helleborus x hybridus Harvington Speckled White’ Great illuminating a shady spot £9.99 Buy
Paeony / Peony ‘Paeonia lactiflora Karl Rosenfield’ Fragrant, magenta flowers £6.99 Buy
Burnet ‘Sanguisorba menziesii’ Bright red spires in early summer £5.99 Buy
Price Pruned
Burnet ‘Sanguisorba Tanna’ Elegant spires of red flowers NOW £5.49 Buy