pruning french Lilacs

New Carlisle, OH

How do you prune a french lilac and still have flowers the next spring?

Dublin, CA(Zone 9a)

You prune right after it finishes blooming. For this year it's probably too late so you'll have to either sacrifice next year's blooms if it's badly in need of pruning, or else wait until next year just after it finishes its bloom and do it then.

Dover AFB, DE(Zone 7a)

Cut out a third of the oldest stems all the way down to the ground every three years immediately after they bloom.

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