We have found 25 plants that meet your criteria.

Pink ‘Dianthus Mrs Sinkins’ Scented white flowers with ragged petals £5.49 Buy
Christmas Rose ‘Helleborus niger’ Bowl-shaped, white flowers in the depths of winter £5.49 Buy
Beardless Siberian Iris (syn. I.... ‘Iris sibirica Snow Queen’ Great for adding vertical interest £5.99 Buy
Price Pruned
Black Lilyturf ‘Ophiopogon planiscapus Nigrescens’ Almost black, grassy foliage NOW £5.99 Buy
Bistorta ‘Persicaria amplexicaulis Alba’ Elegant spikes of white flowers. This plant loves wet soil! £5.99 Buy
Lamb's Ears ‘Stachys byzantina Silver Carpet’ Non-flowering silver foliage £5.99 Buy
Mullein ‘Verbascum Spica’ A stately mullein £5.99 Buy
African Lily ‘Agapanthus africanus Albus’ White globes of trumpet-shaped flowers £6.99 Buy
Price Pruned
Elephant's Ears ‘Bergenia Bressingham White’ Pure white flowers and handsome deep green leaves NOW £5.49 Buy
Elephant's Ears (Bergenia Silverlight) ‘Bergenia Silberlicht’ Dramatic white flowers in spring £5.99 Buy
Rock Cranesbill ‘Geranium macrorrhizum Album’ White flowers. Perfect for suppressing weeds £5.99 Buy
Harvington Hellebore ‘Helleborus x hybridus Harvington Speckled White’ Great illuminating a shady spot £9.99 Buy
Harvington Hellebore ‘Helleborus x hybridus Harvington White’ Heavenly white flower heads £9.99 Buy
Coral Flower ‘Heuchera Chocolate Ruffles’ Large, burgundy-brown leaves and spires of white flowers £5.99 Buy
Hairy Canary Clover ‘Lotus hirsutus Little Boy Blue’ Silvery foliage with a blue haze £5.99 Buy
Lungwort ‘Pulmonaria Sissinghurst White’ Pure white flowers green leaves with white spots £5.99 Buy
Moth Mullein ‘Verbascum blattaria f. albiflorum’ Great for gravel gardens £5.99 Buy
Mullein ‘Verbascum chaixii Album’ Saucer-shaped white flowers with mauve centres £5.99 Buy
Price Pruned
Lesser Periwinkle ‘Vinca minor Gertrude Jekyll’ Abundance of small white flowers NOW £5.99 Buy
Horned Violet ‘Viola cornuta Alba Group’ Subtly-scented, pure white flowers £5.99 Buy