Centaurea dealbata (Persian cornflower):
Large, showy pink flowers over deeply divided foliage. Makes a good-sized clump in a couple of years. To 60cm. Hardy.
[Collect Only]
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.