Aster cordifolius 'Silver Spray' (Syn. Symphyotrichum cordifolium 'Silver Spray'): Large sprays of small pale lilac flowers in autumn. Mildew resistant and doesn't need staking. Hardy. Up to 80cm. [Collect Only]

Aster trifoliatus subsp. ageratoides 'Ashvi': White flowers in a neat mound over a very long season - July to November. Hardy. Up to 80cm. [Collect Only]

Geranium 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]

Liatris spicata 'Alba': Spikes of white flowers in mid to late summer. Very useful vertical accent. Bees adore it. To 80cm. Hardy

Lobelia siphilitica 'Alba' (Cardinal flower 'Alba'): Tall spikes of white flowers and bright green lance-shaped leaves. Needs a soil which doesn't dry out. Hardy. Up to 90cm.

Lychnis flos-cuculi 'White Robin' (White Ragged Robin): A pretty white form of our native Ragged Robin. Starry white flowers in early summer. Thrives in damp, part-shaded spots.

Physostegia virginiana 'Alba' (Obedient plant 'Alba'): Spires of white flowers on slowly spiralling stems. A good border filler as it soon clumps up. To 70cm.