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. 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. Look out for these appearing through the surface of the soil.
Lilac trees that are over three years old can safely have these removed as close to the ground as possible. Do this from mid-June onwards. For new lilac trees in their first year, remove all the forming flower buds before they start to bloom. This is usually around the first week of stumptrimmers.buzzted Reading Time: 6 mins.
Apr 06, As a general rule for all lilacs, they should be pruned immediately after they’re done flowering in the spring. Since lilacs set next year’s flower buds right after the current year’s flowers have faded, pruning later in the summer or fall will result in cutting off many or all of next year’s stumptrimmers.buzzted Reading Time: 4 mins.
Sep 27, The best time to prune a lilac tree is immediately after flowering. Perform a rejuvenation pruning on mature Japanese lilac trees every few years by cutting one-third of the large, old stems all the way back to the ground in late winter. GO LIVE. Jul 08, Although you'll be losing some flowers for the current year, pruning overgrown lilacs is easiest early in the spring before the branches leaf out.
After three consecutive years of pruning your overgrown lilac in this way, new shoots should comprise the bulk of the plant. You don’t have to dead head lilacs all the time. The best time to do this is in its earliest years. Your lilac tree will be blooming in the first 2 to 3 years and you should dead head it as soon as the flowers fade and die.
When you dead head your lilac tree, you remove older flowers and help your tree focus it’s energy on new growth. Mar 17, Prune right after blooming to have blooms the following year. Tradition shrub trimming says to take out 1/3 of the old branches for three years in a row.
However, with lilacs this old, which are a variety that are tougher than nails and need total rejuvenation, cut them down to 1 foot while they are dormant.
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.