When should gaura be pruned?

The plants can be cut back hard in early spring (around September). Cut back to about 15cm (6″). If the plants are looking tired prune again in summer to encourage a further flush of flowers. The plants should be in full bloom six to seven weeks after pruning.

Do you cut back gaura UK?

Gaura Pruning to Renew Blooms

By midsummer, plants may slow down flower production. To encourage rebloom, cut the plants back for more flowers in a few weeks. In cool summer areas, gaura blooms continuously all summer, especially if plants are deadheaded, and cutting back plants may not be needed then.