Geranium nodosum (Knotted cranesbill):
Fast spreading hardy geranium with purplish pink flowers over a long season in summer. A great gap filler. Up to 50cm.
Persicaria amplexicaulis (Red bistort):
Spikes of reddish pink flowers from July to November. Robust plant ideal for filling awkward corners. Easy and reliable.
[Collect Only]