What will happen if I did not prune my lilac last fall?

Answer

Lilacs will continue to bloom without pruning. However, pruning helps to control the height and shape of the shrub, and helps to keep them blooming consistently every year. Proper pruning and thinning also helps to increase air circulation; promoting new growth for a strong and healthy plant.

Updated on April 9, 2018

Original Article:

How and When to Prune Lilacs for Bigger Blooms
By Anthony Altorenna
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