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Lastly, remove all large, heavy branches that no longer produce flowers well.

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.

Doing so helps to maintain the plant's shape and to minimize the number of old, damaged branches, which are vulnerable to disease.

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, 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. The ideal time to prune is just after the bush finishes blooming for the year. At that point, the plant hasn't begun to prepare for the next flowering season, and it’s also simple to see which. Jul 14, Why it’s best to prune your lilacs in early 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 bushtrim.buzzted Reading Time: 2 mins.

Apr 12, Lilac only bloom in the spring and then remain leafy and green until fall. I was told it is best to trim the blooms as they begin to die. You can trim them back a bit throughout the summer, but for a full trim it is best to wait until fall. It will grow back nice and full in the spring. Happy bush trimming! Jun 03, Pruning lilacs is best done within a few weeks after the blooms fade.

Trim them with bypass pruning shears, cutting blooms off just above the place the stem forks beneath the bloom. Old growth should also be cut back every few years to help keep. 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 up with a ten foot bush with ten blooms on top. Apr 12, When is the best time to prune a lilac is a simple matter of your priorities. If your priority is the health of your Lilac (%26amp; blooms are secondary), you will prune in the winter due to lower risk of disease infection, insect infestation and quickest healing rates following pruning.

If your priority is aesthetics (flowering, which is why we plant Lilacs in the first place), then you will say that right after blooming is the best time. Spring, however, before the leaves pop out, is best. Fall (September through late October) is second best. Lilacs love manure, be it bagged or au natural; compost also is good, as is fertilizer. Now and then, sprinkle a little lime or wood ashes around your plants because they appreciate near-neutral soil.