See more photos of this routine applied to this shrub and also to common.
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. Cut out all the oldest stems after the shrub blooms. That reduces the height and the bulk. What the bush does in year one, summer: New, shorter canes (suckers) grow from the cut-back stubs. Meanwhile, the remaining original canes produce flower buds for the next year. Below, it's a. Prune these spring flowering shrubs soon after they have bloomed.
Top prune the plant to improve the shape and reduce its size but, be careful not to remove more than 30% of the top growth. Some summer pruning can also be done on particularly vigorous plants but, not after mid-July.
As the plant matures, some “renewal pruning” should be done. 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 bushfell.clubted Reading Time: 2 mins. 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.
Jul 08, The time to prune mature lilac plants is just after the flowers have faded in the spring.
Lilacs set next season's flower buds almost immediately, so late pruning will mean sacrificing the next year's flowers. Pruning early also gives new shoots more time and energy to develop, ensuring plenty of blooms for the following spring.