Purple Perennials Show filters Hide filters Filter products Clear selection Only show available products In Stock (92) (Pot Size) 1L (13cm) (39) 1.5L (15cm) (5) 2L (17cm) (76) 3L (19cm) (65) 4L (21cm) (1) 7L (26cm) (1) 9cm (3) 10cm (1) 10.5cm (5) 12cm (3) 6 Pack (1) Clear selection (Aspect) East-facing (131) North-facing (51) South-facing (145) West-facing (166) Clear selection (Attractive to Wildlife) Attractive to Bees (123) Attractive to Birds (3) Attractive to Butterflies & Moths (100) Attractive to Wildlife (6) Clear selection (Flowering Month) January (1) February (5) March (22) April (29) May (59) June (137) July (143) August (124) September (98) October (50) November (2) December (1) Clear selection (Hardiness (RHS rating)) H3 -5 to 1ºC. Half-hardy - mild winter (13) H4 -10 to -5ºC. Hardy - average winter (25) H5 -15 to -10ºC. Hardy - cold winter (36) H6 -20 to -15ºC. Hardy - very cold winter (54) H7 colder than -20ºC. Very hardy (46) Clear selection (Height) 10cm (5) 15cm (3) 18cm (1) 20cm (5) 25cm (9) 30cm (18) 35cm (5) 40cm (9) 45cm (4) 50cm (19) 60cm (22) 65cm (2) 70cm (5) 75cm (13) 80cm (14) 85cm (1) 90cm (8) 100cm (13) 120cm (7) 150cm (4) 160cm (1) 180cm (2) 200cm (2) Clear selection (Spread) 10cm (3) 15cm (1) 20cm (10) 25cm (4) 30cm (18) 35cm (1) 40cm (24) 45cm (19) 50cm (39) 60cm (26) 65cm (2) 70cm (3) 75cm (9) 80cm (1) 90cm (3) 100cm (8) 120cm (2) Clear selection (Moisture) Moist but well-drained (123) Poorly-drained (7) Well-drained (97) Clear selection (pH) Acid (142) Alkaline (142) Neutral (171) Clear selection (Plant Habit) Bushy (44) Clump-forming (103) Columnar / Upright (32) Mat-forming (10) Mound-forming (1) Trailing (1) Tufted (2) Clear selection (Planting Types) Banks and Slopes (38) Borders and Beds (169) Containers & Baskets (19) Cut Flowers (69) Garden Edging (42) Ground Cover (41) Living Walls (7) Naturalising (4) Pots & Containers (100) Underplanting of Deciduous Trees and Shrubs (12) Underplanting of Roses and Shrubs (14) Water-side Borders (8) Clear selection (Season of Interest) Spring (88) Summer (154) Autumn (109) Winter (14) Clear selection (Soil Type) Chalk (112) Clay (92) Loam (167) Sand (147) Clear selection (Special Attributes) Attractive Foliage (28) Attractive Seed Heads (3) Attractive Stems (1) Autumn Foliage Colour (1) Berries or Fruit (3) Drought Tolerant (66) Easy to Grow (151) Long Flowering (87) Low Maintenance (136) Scented Flowers (28) Scented Foliage (28) Some Resistance to Disease (14) Some Resistance to Rabbits & Deer (80) Clear selection (Brand) Addenda (2) Agapanthus Black Jack (1) Agapanthus Poppin’ Purple (1) Lovingly Grown @ Cowell's (70) Must Have Perennials (2) Proven Winners (3) Purple Wedding (1) Whetman Pinks (1) Clear selection £ - Clear selection 1 - 60 of 174 productsItems per page1224364860AllSort byName ascendingName descendingPrice ascendingPrice descendingOffersPopularity 123 Next £ 14.99Add to wishlistMore infoAchillea 'New Vintage Violet'Out of Stock £ 14.99Add to wishlistMore infoAconitum 'Arendsii'Add to cartIn Stock £ 14.99Add to wishlistMore infoAconitum 'Bressingham Spire'Add to cartIn Stock £ 16.99Add to wishlistMore infoAconitum 'Purple Sparrow'Add to cartIn Stock Options from £ 29.99Add to wishlistMore infoAgapanthus 'Black Jack'In Stock £ 29.99Add to wishlistMore infoAgapanthus 'Black Magic'Out of Stock £ 14.99Add to wishlistMore infoAgapanthus 'Black Pantha'Add to cartIn Stock £ 19.99Add to wishlistMore infoAgapanthus 'Midnight Sky'Out of Stock £ 16.99Add to wishlistMore infoAgapanthus 'Poppin Purple'Add to cartIn Stock £ 19.99Add to wishlistMore infoAgapanthus 'Royal Velvet'Out of Stock £ 12.99Add to wishlistMore infoAgastache 'Blue Fortune'Add to cartIn Stock £ 14.99Add to wishlistMore infoAgastache 'Golden Jubilee'Out of Stock Options from £ 6.99Add to wishlistMore infoAgastache 'Morello'Out of Stock Options from £ 5.99Add to wishlistMore infoAjuga 'Black Scallop'In Stock £ 12.99Add to wishlistMore infoAllium 'Ambassador'Out of Stock £ 12.99Add to wishlistMore infoAllium 'Gladiator'Add to cartIn Stock At 2 items: £ 10.00 Add to wishlistMore infoAllium 'Globemaster'Add to cartIn Stock £ 12.99Add to wishlistMore infoAllium 'Lavender Bubbles'Add to cartIn Stock £ 19.99Add to wishlistMore infoAllium 'Little Sapphire'Out of Stock Options from £ 6.99Add to wishlistMore infoAllium 'Millennium'Add to cartIn Stock £ 12.99Add to wishlistMore infoAllium 'Ostara'Add to cartIn Stock At 2 items: £ 10.00 Add to wishlistMore infoAllium 'Pinball Wizard'Add to cartIn Stock £ 14.99Add to wishlistMore infoAllium 'Serendipity'Out of Stock At 2 items: £ 10.00 Add to wishlistMore infoAllium cristophiiAdd to cartIn Stock At 2 items: £ 10.00 Add to wishlistMore infoAllium giganteumAdd to cartIn Stock At 2 items: £ 10.00 Add to wishlistMore infoAllium schubertiiAdd to cartIn Stock £ 14.99Add to wishlistMore infoAngelica gigasOut of Stock £ 12.99Add to wishlistMore infoAngelica sylvestris 'Vicar's Mead'Out of Stock £ 14.99Add to wishlistMore infoAquilegia 'Black Barlow'Out of Stock £ 12.99Add to wishlistMore infoAralia cordata 'Sun King'Out of Stock £ 9.99Add to wishlistMore infoAster 'Alpha Dark Purple Launch'Out of Stock £ 12.99Add to wishlistMore infoAster 'Marie Ballard'Out of Stock £ 12.99Add to wishlistMore infoAster 'Professor Anton Kippenberg'Out of Stock £ 12.99Add to wishlistMore infoAster 'Winston Churchill'Out of Stock £ 12.99Add to wishlistMore infoAster Autumn Jewels 'Purple Diamond'Out of Stock £ 14.99Add to wishlistMore infoAstilbe 'Purple Rain'Out of Stock £ 14.99Add to wishlistMore infoAstrantia 'Venice'Add to cartIn Stock £ 14.99Add to wishlistMore infoAstrantia Sparkling Stars Series 'Star of Beauty'Add to cartIn Stock £ 12.99Add to wishlistMore infoCampanula 'Loddon Anna'Out of Stock £ 12.99Add to wishlistMore infoCampanula 'Prichard's Variety'Out of Stock £ 12.99Add to wishlistMore infoCampanula 'Sarastro'Out of Stock £ 6.99Add to wishlistMore infoCampanula Addenda Ambella 'Intense Purple'Add to cartIn Stock £ 6.99Add to wishlistMore infoCampanula Addenda Ambella 'Lavender'Add to cartIn Stock £ 12.99Add to wishlistMore infoCenolophium denudatumAdd to cartIn Stock £ 12.99Add to wishlistMore infoCentaurea montanaAdd to cartIn Stock £ 12.99Add to wishlistMore infoChelone obliquaAdd to cartIn Stock £ 14.99Add to wishlistMore infoCirsium 'Trevor's Blue Wonder'Out of Stock £ 12.99Add to wishlistMore infoCrocus 6 PackOut of Stock £ 14.99Add to wishlistMore infoCynara cardunculusAdd to cartIn Stock £ 14.99Add to wishlistMore infoCynara cardunculus var. scolymusOut of Stock £ 14.99Add to wishlistMore infoDelphinium 'Black Knight'Out of Stock £ 14.99Add to wishlistMore infoDelphinium 'Delgenius Breezin'Out of Stock £ 14.99Add to wishlistMore infoDelphinium 'Delgenius Kingsley'Out of Stock £ 14.99Add to wishlistMore infoDelphinium 'Excalibur Dark Blue Black Bee'Out of Stock £ 14.99Add to wishlistMore infoDelphinium 'Faust'Out of Stock £ 14.99Add to wishlistMore infoDelphinium Highlander 'Moonlight'Add to cartIn Stock £ 14.99Add to wishlistMore infoDelphinium Highlander 'Sweet Sensation'Out of Stock £ 14.99Add to wishlistMore infoDelphinium Higlander 'Bolero'Out of Stock £ 14.99Add to wishlistMore infoDelphinium Higlander 'Cha Cha'Out of Stock Options from £ 6.99Add to wishlistMore infoDelphinium New Millennium Series 'Pagan Purple'In Stock 123 Next
