Anemone Wild Swan 'Macane001' (PBR):
Pure white flowers with a blueish purple reverse. Flowers on and off all summer. Needs part shade and good moist soil. Hardy. To 50cm.
Persicaria runcinata 'Purple Fantasy':
Attractive foliage perennial with triangular leaves with V shaped dark purple marks. Loose spikes of pink/white flowers in summer. Hardy. Up to 60cm.