PRUNING LILACS PROPERLY Dr. Leonard Perry, Extension Professor University of Vermont Lilacs remain one of the most popular landscape plants in the North, and one of the easiest to grow. Other than trying to figure out which new ones to buy, the main question seems to be about pruning and renovating older plants.
Apr 28, To prune your lilacs, start deadheading in early-to-late spring by cutting the flowers at their base just after they’ve reached their peak. You should also cut any flowers that are already dying so they don’t sap energy that could be used for pruning of lilac bushes growth%(4). Apr 25, Lilacs should be pruned yearly to develop a good framework of stems and promote vigorous growth that enhances flowering.
Yearly pruning consists of cutting diseased, misshapen, and unproductive stems to the ground. I also thin and remove some stems to encourage properly spaced, vigorous shrubfell.buzzted Reading Time: 8 mins. Remove the Old Wood: Remove the old wood every year. As the plant grows, the amount of wood increases. The wood, if not removed, creates a visible hole in the center of the lilac bush.
Allow the new shoots to cover this hole, and replace the old wood. If the plant is new, light pruning will be enough. Aug 27, Renewal pruning to decrease density and consistent watering will help support the stressed plant. Verticillium wilt affects a number of plants in our landscapes, including lilac. It is caused by two fungi: Verticillium dahliae and Verticillium albo-atrum. There is no cure for a plant with this fungal infection.
Use pruners for cuts up to 3/4 inch in diameter, loppers for cuts up to 1 ½ inches, and a pruning saw for anything larger. Warnings. Do not shear a miniature lilac as it will weaken the plant and.