Achillea ptarmica 'The Pearl' (Yarrow 'The Pearl): Tight buttons of white flowers, ferny grey/green foliage. Prefers full sun and light well-drained soil. Hardy. Up to 60cm.

Agastache rugosa f.albiflora 'Liquorice White' (Korean mint 'Liquorice White'): Tall, aromatic perennial with spires of tiny white flowers. Aromatic foliage. To 1.5m. Fully hardy in light soils. May self-seed.

Aruncus dioicus (Goat's beard): Stately plant for larger borders or feature plant. Deeply divided foliage, frothy panicles of creamy white flowers in summer. Hardy. Up to 2m. [Collect Only]

Astrantia 'Superstar' (Masterwort. Syn. Astrantia 'White Giant'): A new variety of white Astrantia selected for its very large white flowers. Flowers are bigger once the plant is established.

Campanula lactiflora 'Alba' (Milky bellflower 'Alba'): Tall stems with clusters of pure white flowers in mid-summer. Ideal for filling out borders and adding height. Hardy. Up to 1.2m

Campanula persicifolia var. alba (Peach-leaved bellflower white flowered): Pure white large rounded cups on upright stems. Height to 70cm. Hardy.

Catananche caerulea 'Alba' (Cupid's Dart (White)): Papery white flowers above slender grey-green foliage. Flower heads retains attractive form through winter. To 60cm. Hardy

Centaurea montana 'Alba' (Perennial cornflower - white): Large white cornflower-like flowers over grey-green foliage. To 30cm. Hardy. [Collect Only]

Centranthus ruber 'Albus' (White Valerian): White panicles of white flowers in mid-late summer. Very easy, self-seeds. Perennial and hardy. To 60cm.

Dierama - white flowered (Angel's Fishing Rod): Arching white flowers with pink throat on wire-like stems. Grassy foliage. Looks lovely near water, in pots or over paths

Epilobium angustifolium 'Album' (White Rosebay Willowherb. Syn. Chamaerion angustifolium 'Album'): Slender spires of white flowers in late summer. To 1.8m. Hardy. [Collect Only]

Fuchsia magellanica 'Alba': Hardy fuchsia with white flowers tinged with pink. Deciduous shrub with lance shaped deep green leaves. Prefers a sheltered spot. Up to 1.2m. [Collect Only]

Geranium phaeum 'Album' (Dusky cranesbill 'Album'): Clean white flowers held above bright green foliage. Excellent in shade. Spreading habit. Hardy. Height to 60cm.

Geranium pratense 'Purple Ghost' (Meadow cranesbill 'Purple Ghost'): Dark-purple leaved variety with white flowers with pale pink veining. Stunning contrast between foliage and flowers.Hardy. Up to 20cm. [Collect Only]

Geranium pratense var. pratense f. albiflorum 'Laura' (PBR) (Meadow cranesbill 'Laura'): An attractive double form of the familiar meadow cranesbill with lovely pure white flowers. Strong growing. Hardy. Up to 70cm. [Collect Only]

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

Iris ensata 'Light at Dawn' (Japanese iris): Large, white, very open, almost flat flowers with purple picotee edging. Height to 90cm. Hardy. [Collect Only]

Leucanthemum x superbum 'Becky' (Shasta daisy 'Becky'): Shasta daisy with clean white flowers with golden centre. Long flowering season. Ideal for sunny border. Hardy. Up to 1m. [Collect Only]

Lychnis coronaria 'Alba' (Rose campion (white)): Pure white flowers on tall silver stems above rosettes of silver leaves

Morina longifolia: Whorls of white tubular flowers which age to pink, above prickly rosettes of glossy dark green aromatic leaves. Hardy. Up to 90cm.

Penstemon 'Pensham Laura': White flowers with bright lipstick pink edges to the petals. Very showy and long flowering. [Collect Only]

Penstemon 'White Bedder': Pure white tubular flowers over semi-evergreen foliage. Frost-hardy perennial. Up to 60cm. [Collect Only]

Phlox paniculata 'David' (Phlox 'David'): An excellent phlox with clean white flowers and a delightful scent. To 1.2m. Hardy. [Collect Only]

Polemonium caeruleum f. albiflorum (Jacob's Ladder - white form): Clusters of pure white flowers over foliage with leaflets arranged in pairs.Good in part shade. To 50cm. Hardy. [Collect Only]

Romneya coulteri (Californian tree poppy.): Tall, impressive plant with large, crepe-paper white flowers with central yellow 'boss'. [Collect Only]

Salvia nemorosa 'Sensation White' (Balkan Clary 'Sensation White'): Compact with spikes of pure white flowers. Height 30cm. Likes humus rich, well-drained soil in sunny position. [Collect Only]

Sanguisorba tenuifolia var. alba: Soft arching white bottle-brush flowers over fine, frondy foliage. To 1.5m Hardy.

Scabiosa caucasica var. alba (Scabious white flowered): Large white frilled flowers over lance-shaped grey-green foliage. Long flowering. Loved by bees and butterflies. Height to 60cm. Hardy.

Thalictrum delavayi 'Album' (Chinese meadow rue 'Album'): Dainty cup-shaped white flowers held high above fern-like greyish green leaves. To 1.2m. Hardy

Thalictrum ichangense: Rounded purplish green leaves with silvery veins, dainty sprays of tiny pink flowers in summer.

Tiarella 'Oregon Trail' (Foam flower 'Oregon Trail'): Deeply cut leaves with attractive central dark marking. White frothy flower spikes in summer. To 20cm. Hardy. [Collect Only]

Tradescantia (Andersoniana Group) 'Innocence' (Spider lily 'Innocence'): Three-petalled pure white flowers with purple tinged anthers. Strappy bright green foliage.

Trautvetteria caroliniensis (False bugbane): Fluffy white, lightly fragrant flowers, similar to the Thalictrum flowers. Prefers partial shade with a moist soil. Hardy. Up to 90cm. [Collect Only]

Verbena hastata 'Alba' (American blue vervain 'Alba'): Tall, branched stems like a candelabra with spikes of small white flowers loved by bees. Needs a sheltered spot & full sun. Up to 1.2m. [Collect Only]

Veronica longifolia 'Charlotte' (PBR) (Long-leaved speedwell 'Charlotte'): Spikes of white flowers, slender variegated leaves. Good in sun or part shade. Hardy. Height to 40cm. [Collect Only]

Vinca minor f. alba 'Gertrude Jekyll' (Small white periwinkle 'Gertrude Jekyll'): A compact mat-forming evergreen perennial with trailing stems of dark green leaves. White flowers from mid spring to autumn.