Dierama pulcherrimum 'Alba' (Angel's Fishing Rod): Tall, wiry, arching stems with white nodding bells. Lovely near water or over paths. To 1.5m. [Collect Only]

Digitalis purpurea 'Alba' (White foxglove): Pure white flowers on tall spires in late spring. Biennial so keep and re-sow the seed

Fagopyrum dibotrys: Tall statement plant for the back of a border. Airy white flowers in late summer. Heart-shaped leaves. Stems red in autumn. Vigorous. Hardy. Up to 1.5m.

Sanguisorba canadensis (White burnet): Bottle-brush white flowers in late-summer above green pinnate foliage. Very tactile plant. Long flowering. Hardy. Up to 2m [Collect Only]

Sanguisorba tenuifolia var. alba 'Korean Snow': A very tall form with white fluffy tassel-like flowers above attractive ferny green foliage. Prefers full sun, will tolerate some shade. Hardy. Up to 1.8m. [Collect Only]

Selinum wallichianum (Wallich milk parsley): Stately umbellifer with large white heads atop large lacy leaves. Hardy. To 1.5m

Thalictrum aquilegiifolium (French meadow rue): Fluffy heads of pale pink or white flowers in early summer

Veronicastrum virginicum 'Album' (Culver's Root 'Album'): Slender spikes of white flowers above rising whorls of slender green leaves. To 1.5m. Hardy [Collect Only]