It is best to prune weigela shrubs in the late spring after they have finished blooming. Trimming weigela bushes right after they bloom will keep you from inadvertently pruning off next year's flowers. This is because weigela blooms on wood that it is a year old. The wood that grows this year will bloom next year.

Do you cut weigela back in the fall?

Prune weigela in the late fall or early spring.

Prune your weigela plant after the threat of frost is over, sometime in the late fall or early spring. You can prune the weigela before it blooms to promote more flowers this year or after it blooms to promote stronger growth during the next blooming season.

What do you do with weigela in the winter?

At Winter's End. Although weigela is a hardy plant, it's prone to winter dieback, especially in areas with harsh winters. Because of this, it's a good idea to examine the plant at the end of winter and prune off any dead stems. Double-check stems that look dead by scratching the bark with a fingernail.