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Should lilacs be pruned after flowering?

  • Jardin botanique
English

This is a good time to do some maintenance pruning, which consists of eliminating dead, damaged and diseased wood, as well as branches that are bent or too close together and any that are rubbing or crossing. Removing some of the weaker, old and less vigorous branches each year is also a good way to rejuvenate a shrub.

Wilted flowers may also be removed before the fruit forms. This should be done one to two weeks after blooming, cutting just below the old flower heads. More severe pruning will affect the next year’s flower production.

To learn more, consult the Green Pages section on lilacs.

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