Geranium phaeum (Dusky cranesbill):
Purple flowers with swept-back petals held high above soft green foliage. Early to flower, reliable and easy. To 60cm. Hardy.
Lysimachia barystachys (White Loosestrife):
Upright spikes of white flowers in late summer. Vigorous and very attractive to bees and butterflies. To 1m. Hardy
[Collect Only]
Silene fimbriata (Fringed Campion):
Greeny white fringed bell-shaped flowers, loved by bees. Can spread quite vigorously, though will be less so in a dry spot. Hardy. Up to 75cm.