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} Growing Lilacs 3 Pruning is unnecessary for the first 3 or 4 years.
Here's an image of a moderately mature common lilac that can use a little maintenance.
Thereafter, limit pruning to the removal of weaker wood from the center of the bush. This prevents a thicket from developing. You should do this soon after flowers have fallen. Do not prune in late summer, fall, or winter; late pruning often results in removal of flower buds. Jun 30, 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 treedelimbing.clubted Reading Time: 6 mins. Jul 14, Why it’s best to prune your lilacs in Polk City FL summer. Once a lilac bush is more than two years old, it requires annual pruning. The best time to grab your clippers and get to work is in early summer, after the flowers have bloomed and faded. Here’s what you should know about caring for lilac bushes and treedelimbing.clubted Reading Time: 2 mins.
Jun 01, Most lilacs form conical bloom clusters on branch ends. To deadhead, cut just below where the cluster begins and, just above where there is a significant side branch or leaf node.
Or, if you are reducing the shrub's size, you can cut even further back to a larger side branch. View treedelimbing.clubted Reading Time: 7 mins. Jun 10, To prune lilacs, get to work in the spring: cut fresh flowers for bouquets, nip off the longest stems, and thin out any weak stems at the base. Avoid pruning late in the summer or fall since doing so can limit future growth.
Part 1 Doing an Annual PruningViews: K.