Geranium wlassovianum: Warm purple flowers over attractive velvety foliage. Excellent autumn foliage colour. [Collect Only]

Lysimachia clethroides (Gooseneck Loosestrife): Spikes of white flowers arch over and tip up again, like a goose or swan neck. To 1m. Hardy

Persicaria amplexicaulis 'Rosea' (Red bistort 'Rosea'): Spikes of pale pink flowers in late summer. Large oval pointed leaves. Grows in most situations as long as not too dry. Hardy. Up to 1.2m. [Collect Only]

Thalictrum 'Splendide White' (PBR) (Rue 'Splendide White'): Pure white flowers open from spherical buds. Spectacular in dappled shade

Tricyrtis formosana 'Seiryu' (Toadlily 'Seiryu'): Upright stems of blue star-like flowers, often speckled with lilac and a paler centre. Above dark green spotted foliage. Hardy. Up to 60cm. [Collect Only]