Aruncus aethusifolius (Goat's beard): Lovely fresh ferny foliage which turn golden in the autumn. Spikes of creamy white flowers in early summer. Hardy. Up to 50cm.

Geranium himalayense 'Derrick Cook' (Cranesbill 'Derrick Cook'): Large white flowers with delicate purple veining above a clump of bright green leaves. Foliage turns red in autumn. To 35cm. Hardy.

Geranium macrorrhizum 'White Ness' (Cranesbill 'White Ness'): Pure white flowers over aromatic, bright green, evergreen foliage. Good groundcover in shade. Hardy. Up to 50cm.

Nepeta racemosa 'Snowflake' (Catmint 'Snowflake'): Compact variety of catmint forming mounds of silvery-green foliage and masses of clear white flowers. Loved by bees. Hardy. Up to 45cm.