Japanese tree lilacs generally require little, if any, pruning until they are about 3 years.
Apr 02, How to Prune Lilac Bushes. When pruning lilacs, cutting back the tops of overgrown stems is oftentimes not enough. It is generally better to cut the entire stem.
Trimming lilacs is best accomplished using clippers. Remove spent blooms all the way to the stems to prevent seeding and encourage more blooms later on. Cut back about a third of the branches. Jul 08, The general shrub pruning rule is to cut no more than a third of the stems each year.
2 That will help the plant remain constantly vital, with new stems developing as old stems bloom. Your goal is to have a lilac bush that has somewhere between eight to 12 stems of various ages, all of them between 1 to 2 inches in diameter.
Jan 06, Winterizing Lilac Shrubs: Tips For Lilac Care In Winter Winterizing Lilac Shrubs. Lilacs are one of the most winter hardy ornamental plants around. Do lilacs need cold Lilac Care in Winter. Lilacs withstand a chilly winter better than most plants.
They do benefit from occasional watering. Pruning in early spring will also cut off some of that season’s flowers. Broken branches of course should be pruned off whenever seen. Just be sure if pruning after bloom to not prune past mid-summer. This will allow time for the wounds to heal before winter, and any new growth that might be stimulated should harden properly before winter.
Home gardeners can choose between two different pruning methods. 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.