When and how is the best time to prune a lillac bush?

0 Answers

  1. necoop wrote on :

    Trim off blooms after they have dried. Don’t “top” a lilac or you will cut off next year’s buds. To reshape, cut large brances off at trunk. This allows air and sunlight to circulate within the lilac. If the lilac is old and just too large or tall, a severy pruning to the ground can be done (to about 12″) but prepare to wait 3 years for regrowth and blooming.

  2. Joan Ross wrote on :

    once the flowers bloom and fade, it’s okay to prune them. This is how I have always done it. It will strengthen next years bloom.

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