Excellent summer and autumn flowering plants as well as some foliage types. Many are tidy clump formers and not the thugs that many imagine the whole family to be. In particular types of P. amplexicaulis are very good for naturalistic style gardening.
A neater grower than the commonly seen Persicaria amplexicaulis, Persicaria bistorta makes a clump of spear shaped leaves and in this form masses of slender, but strong, stems topped with pink spikes in early summer to 40cm.
Like a smaller form of the giant Persicaria polymorpha (now correctly Persicaria alpina). Clumps of stems with broad leaves and branching spikes of white autumn flowers. Excellent autumn foliage colour too before it collapses with the first frosts.