We have found 45 plants that meet your criteria.

Aster ‘Aster lateriflorus Lady in Black’ Masses of tiny, pink-tinged daisies £5.99 Buy
Price Pruned
Beard Tongue ‘Penstemon White Bedder’ Large, white, foxglove-like flowers NOW £5.49 Buy
Price Pruned
Bellflower ‘Campanula poscharskyana E H Frost’ Groundcover with white flowers NOW £4.99 Buy
Bergamot ‘Monarda Schneewittchen (syn. Snow Maiden)’ Whorls of wonderful, white flowers £5.99 Buy
Bistorta ‘Persicaria amplexicaulis Alba’ Elegant spikes of white flowers. This plant loves wet soil! £5.99 Buy
Bugbane (Cimicifuga) ‘Actaea matsumurae White Pearl’ Lights up a shady area in autumn £5.99 Buy
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
Butterfly Collection ‘Butterfly Collection’ Summer-flowering wildflowers £2.99 Buy
Chinese Silver Grass ‘Miscanthus sinensis Strictus’ Distinctive, variegated leaves £6.99 Buy
Coneflower ‘Echinacea purpurea White Swan’ Glorious white flower heads £6.99 Buy
Cottage Garden Collection ‘Cottage Garden Collection’ Create your own cottage garden £2.99 Buy
Price Pruned
Culver's Root ‘Veronicastrum virginicum Album’ Slender spires of white flowers NOW £5.99 Buy
New
Daisy ‘Leucanthemella serotina’ Cheeful, sturdy white daisies in autumn £5.49 Buy
Everlasting Sweet Pea ‘Lathyrus latifolius White Pearl’ Climber with white, sweet pea-like flowers £5.99 Buy
Flat-topped Aster ‘Aster umbellatus’ Masses of small white flowers from late summer £5.99 Buy
Fleabane ‘Erigeron Sommerneuschnee’ Pretty white daisies with fine petals £5.99 Buy
Gaura ‘Gaura lindheimeri’ White, star-shaped flowers and long season £5.49 Buy
Gaura ‘Gaura lindheimeri Whirling Butterflies’ Long-lasting, white flowers. Copes with drought £5.49 Buy
Hairy Canary Clover ‘Lotus hirsutus Little Boy Blue’ Silvery foliage with a blue haze £5.99 Buy