We have found 1099 plants that meet your criteria.

Round-headed Leek ‘Allium Sphaerocephalon’ Small, wine-coloured flowers on tall stems £4.00 Buy
Allium unifolium ‘Allium unifolium’ A longer flowering period that most Alliums £3.75 Buy
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Pheasant's Tail Grass (syn. Stipa... ‘Anemanthele lessoniana’ Versatile and colourful NOW £6.49 Buy
Japanese Anemone ‘Anemone x hybrida Honorine Jobert’ Lights up the garden in late summer £5.99 Buy
Wood Anemone ‘Anemone blanda blue-flowered’ A carpet of bright blue daisy-like flowers £4.00 Buy
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Snowdrop Anemone ‘Anemone sylvestris’ Delicate white flowers in spring NOW £5.49 Buy
Wild Angelica ‘Angelica sylvestris Vicar's Mead’ Great for a wildflower garden £6.99 Buy
Cow Parsley ‘Anthriscus sylvestris Ravenswing’ Lacy purple foliage with a sprinkling of white flowers £6.99 Buy
Price Pruned
Granny's Bonnet ‘Aquilegia caerulea’ A cottage garden favourite NOW £4.99 Buy
Rock Bells ‘Aquilegia canadensis’ Delicate, nodding flowers. Ideal in a meadow £4.99 Buy
Columbine ‘Aquilegia Kristall’ Pure white bell-like flowers £5.49 Buy
Granny's Bonnet ‘Aquilegia vulgaris var. alba’ Pure white nodding flowers £5.49 Buy
Price Pruned
Granny's Bonnet ‘Aquilegia vulgaris var. stellata Black Barlow’ Striking dark purple, double flowers NOW £4.99 Buy
Granny's Bonnet ‘Aquilegia vulgaris var. stellata Ruby Port’ Stunning, double, ruby-red flowers £5.99 Buy
Price Pruned
Granny's Bonnet ‘Aquilegia Yellow Queen’ Elegant lemon yellow flowers NOW £5.49 Buy
Strawberry Tree ‘Arbutus unedo Atlantic’ Compact variety £10.99 Buy
Valerie Finnis Artemisia ‘Artemisia ludoviciana Valerie Finnis’ Very drought tolerant £5.49 Buy
Crocus Special Offers
Goatsbeard ‘Aruncus dioicus’ Plume-like, cream flowers in summer NOW £8.99 Buy
Crocus Special Offers
White Wood Aster ‘Aster divaricatus’ Glorious starry white flowers NOW £5.49 Buy
Aster ‘Aster lateriflorus Lady in Black’ Masses of tiny, pink-tinged daisies £5.99 Buy