Anemone sylvestris (Snowdrop anemone): Large pure white flowers over a mound of green ferny foliage. Hardy. Up to 30cm.

Calamintha nepeta 'White Cloud': Spikes of small white flowers above mounds of minty scented green leaves. Loved by bees and butterflies. Hardy. Up to 30cm.

Campanula glomerata 'Alba' (White clustered bellflower): Tight clusters of white flowers on short stems above neat, mat-forming foliage. Height about 30cm. Hardy.

Centaurea montana 'Purple Heart' (Perennial cornflower 'Purple Heart'): Large white cornflower-like flowers with violet central markings. To 30cm. Hardy

Cyclamen hederifolium 'Album': A tuberous perennial with variable gree or patterned leaves. Delicate pure white flowers produced before the leaves. Self-seeds freely. [Collect Only]

Epimedium grandiflorum 'White Queen' (Barrenwort 'White Queen'): Among the largest and showiest of white flowered Epimediums. To 30cm. Hardy.

Geranium maculatum 'Album' (white spotted cranesbill): Clean white flowers over neat foliage. Great for establishing under trees and in shady areas.

Geranium sanguineum 'Album' (Bloody cranesbill 'Album'): Pure white flowers over a mat of dark green leaves. Height to 20cm. Fully hardy. [Collect Only]

Lamium maculatum 'White Nancy' (Spotted dead nettle 'White Nancy'): A low ground cover plant with silvery heart-shaped leaves and short stems of white flowers. Brightens up a shady area. Hardy. Up to 20cm.

Mukdenia rossii: Short plump spikes of white flowers in spring, but mainly grown for its foliage which turns brilliant red in autumn. Up to 30cm.

Phlox divaricata 'White Perfume': Deliciously scented and delicate pure white flowers which are long-lasting. Prefers some partial shade. Hardy. Up to 30cm.

Podophyllum peltatum (May apple): Large umbrella like leaves, with white waxy flowers beneath. A fine woodland plant. Height to 30cm. Hardy.

Pulmonaria 'Sissinghurst White' (Lungwort 'Sissinghurst White'): Clusters of pure white flowers in spring over white spotted green leaves. To 20cm. Hardy.

Sisyrinchium idahoense 'Album': White star-like flowers with a yellow centre, grass-like strappy foliage. Prefers a sunny spot with good drainage. Hardy. Up to 15cm.

Trillium grandiflorum (American wake-robin): Pure white, three petalled flowers over three-leaved foliage. [Collect Only]