Pruning your lilac will encourage growth. You can find out which shoots need to be cut back here.
Unlike Buddleia, which blooms over several months, Common Lilac only sets flowers once a year, which bloom in spring. These flowers should be pruned back to the first leaf point.
after flowering is over.
Flowers form seeds
The reason: The flowers form seeds that remain on the plant and are therefore in direct competition with the new buds next year. You should also cut back shoots that have not flowered until the next shoot.
This is how lilacs grow stronger
In addition, you can encourage lilacs to grow more compactly and even more vigorously. This is usually done with lilacs, which are already several years old. For this purpose, the shoots are shortened to two thirds of their length in spring.
You can't expect any blossoms this year, but you can be sure that the blossoms will be even more lush and larger in the following year. In addition, wild shoots that grow next to the main plant should be removed, including the root. If you only cut off the shoot on the ground, you will really stimulate growth.