Geranium phaeum 'Raven' (Dusky cranesbill 'Raven'): Dark purple flowers with long stamens and swept-back petals held high above soft green foliage. Great for shady areas. To 60cm. Hardy.

Lamium maculatum 'Beacon Silver' (Spotted deadnettle 'Beacon Silver'): A low ground cover plant with silvery heart-shaped leaves and short stems of purple-pink flowers. Brightens up a shady area. Hardy. Up to 20cm.