Apr 02, When to Trim Lilac Bushes. Knowing when to trim lilac bushes is important.
Most lilacs don’t require pruning until they reach about 6 to 8 feet ( m.) tall. The best time for pruning lilac bushes is right after their flowering has ceased. This allows new shoots plenty of time to develop the next season of blooms. Pruning lilacs too late can kill young developing buds. Of course, you can prune in the fall if absolutely required. Can you cut a lilac bush to the ground? Most lilacs don't require pruning until they reach about six to eight feet ( m.) If you are pruning lilac trees or shrubs entirely to within inches of the ground, it is best to do so in early spring.
Jul 08, When to Prune Lilac Bushes Many of the newer lilac varieties grow quickly and might need pruning starting in their second or third year. In general, by the time a stem reaches more than 2 inches in diameter, it should be pruned. Jun 08, Asked on Jun 08, When can I cut back my lilac bushes?
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