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Apr 02, 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.
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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 stumpdrop.clubted Reading Time: 2 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 stumpdrop.clubted Reading Time: 7 mins. Lilac bushes bloom only once each year, in spring, but they make new buds after they bloom.
The buds become the next year’s flowers. If you trim a lilac bush too late in the year, then you’ll cut. Prune out the wood that bore fruit, cutting canes near ground level. SEPTEMBER – OCTOBER; Any Plants: DO NOT PRUNE shrubs or trees in late summer or early autumn. Pruning stimulates new growth which may not have time to harden off before frost. You may remove any deadwood from shrubs or trees.
NOVEMBER – DECEMBER; Weed Trees and Brush. 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.
Avoid cutting off just the tops of long stems because this can leave the plant with an odd, unnatural shape.
Lilacs should be cut back annually. How to Prune LilacsEstimated Reading Time: 4 mins.