Of course, you can prune in the fall if absolutely required.

Apr 02, 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. 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, 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. If you are diligent with annual pruning of your lilac, the shrub will grow to about 8 feet tall with flowers throughout the branches. Lilac bushes are some of the plants which need this for proper, orderly growth.

You can start pruning them when they are years old, and have established themselves well. In their case, it is important not only to prune, but also to do so at the right time of the year. Here are certain tips that may guide you on how to prune lilac stumpdelimbing.barted Reading Time: 4 mins.

Nov 27, Generally, lilacs do not need to be cut back until the plant reaches eight to ten feet tall. However, the best time to prune the entire bush down to the ground is at the beginning of spring.

Lilacs should be cut back annually. Jun 26, Timing is the Decisive Factor in Pruning Lilacs If you want to have your blooms next year, it is crucial to prune in those first few weeks after blooming ends. Ideally, this is when you would do maintenance pruning each year. But I get so lazy busy, I end Estimated Reading Time: 4 mins.

One way to renew a large, overgrown lilac is to cut the entire plant back to within 6 to 8 inches of the ground in late winter (March or early April). This severe pruning will induce a large number of shoots to develop during the growing season. Dec 10, Cut one or two of the lilac's oldest stems back to the base of the plant if the shrub is several years old and becoming bare or scraggly looking at the base.

This encourages the.