When do youtrim lilac bushes?

Prune them right after they flower. New lilacs only bloom on new stems each year.

When do youtrim lilac bushes?
Lilac bushes are prone to powdery mildew disease, so provide good air circulation by keeping their branches pruned. Prune right after blooming is over. In addition to branch pruning, cut the dead flowers off when they%26#039;re done blooming. This will prevent the seed from forming and thereby promote more profuse flowering the next spring.



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