Jul 08, Most flowering shrubs need regular pruning to keep them vibrant, and the common lilac (Syringa vulgaris) is no exception. Lilac bushes will typically flower without any effort from you. However, if left to grow and spread on their own, common lilacs will eventually only flower on the tops of the uppermost branches. Apr 28, 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%(4). 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.
At this point, there will be enough excess stems and. Jun 03, Many bushes that flower in spring, including the lilac, are best trimmed in the weeks immediately after the blooms die off. For lilacs that bloomed in May, for example, early June is an ideal time to trim.
The new wood created after spring is where some of next year's flower buds form. If all the trimming happens in spring, the bush still has. 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 fade.
The old flower cluster should be cut off at its base- just above the two new shoots that angle out from the stem.