A lilac bush does best when it is trimmed every year. Doing so helps to maintain the plant's shape and to minimize the number of old, damaged branches, which are vulnerable to disease. Jul 08, When to Prune Lilac Bushes. Many of the newer lilac varieties grow quickly and might need pruning starting in their second or third year.
In general, by the time a stem reaches more than 2 inches in diameter, it should be pruned. If you are diligent with annual pruning of your lilac, the shrub will grow to about 8 feet tall with flowers throughout the branches. Jun 19, The best time for pruning older lilac bushes is right after their flowering has ceased. This allows new shoots time to develop the next season of blooms. Pruning too late can kill young developing buds.
Deadheading, should be done as soon as possible after the flowers treemulch.buzzted Reading Time: 3 mins. Oct 06, While a little care is required to keep plants healthy and strong, getting too happy with the pruning shears early in the life of flowers like the lilac results in stunted or dead plants.
You should resist the temptation to prune or trim your lilac bush until it is at least 6 ft. tall, which typically occurs during the second or third year of growth. Mar 26, Hi There~~ I was wondering if I could trim my lilac bush now (January)?
It is very messy and not well taken care of. It barely even gets leaves on it during spring and hardly any blooms. Thanks for any help I can get.