When and how do you cut back wisteria?

Wisteria should be pruned twice a year for optimal growth and flowering. The first pruning occurs in late winter (February to March) when the plant is dormant, focusing on removing dead or weak stems and shaping the plant. The second pruning happens in summer (July to August) after flowering, where you can trim back the long, whippy new growth to encourage more blooms in the following season. Always use clean, sharp tools to make precise cuts and reduce the risk of disease.