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} Apr 28, Fragrant, colorful lilacs are easy to grow in most regions.
The time to prune mature lilac plants is just after the flowers have faded in the spring.
Whether your lilac is a shrub or a small tree, it will need to be regularly pruned in order to maintain a healthy shape and size. To prune lilacs, 75%(4).
Timing is one of the most important factors in pruning lilac bushes. Once your bush reaches 6 feet tall, yearly pruning should definitely become one of your must-do gardening tasks.
How to.
Your lilac bush will reach this height after a few years worth of bushnotch.clubted Reading Time: 7 mins. Lilacs should be pruned yearly to develop a good framework of stems and promote vigorous growth that enhances flowering. Yearly pruning consists of cutting diseased, misshapen, and unproductive stems to the ground.
I also thin and remove some stems to encourage properly spaced, vigorous bushnotch.clubg: Bellingham WA.