Prune only when needed, after bloom in spring. Clematis should only be pruned sparingly. They tend to bloom earlier, in the spring. After their bloom show is over you can give them a light pruning.
What happens if I don't prune clematis?
If left unpruned, clematis vines become overloaded with decrepit stems that produce few flowers.
When should clematis be pruned UK?
When to prune clematis
- Pruning Group 1: Prune mid- to late spring, after flowering and once the risk of frost has passed.
- Pruning Group 2: Prune in February and after the first flush of flowers in early summer.
- Pruning Group 3: Prune in February.