Miss Kim Lilac - Ask Extension
Looking for recommendations on how much of the lilac we can prune back without hurting the plant. Would like to keep them in a globe appearance but at...
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Miss Kim Lilac #870958
Asked May 31, 2024, 1:42 PM EDT
Looking for recommendations on how much of the lilac we can prune back without hurting the plant. Would like to keep them in a globe appearance but at a much smaller size if possible.
Stearns County Minnesota
Expert Response
Hi Robert,
The best time to prune those is right after flowering or when the plants are dormant . Prune out the older wood first. I wouldn't prune off more than one third of growth.
https://extension.psu.edu/how-and-when-to-prune-flowering-shrubs
Good luck,
Sally Granath
St. Louis County MG