non blooming lilacs

Question

Hi, I have some lilac bushes (I use the term bushes loosely). Mostly they are single branches coming out of the ground. They were here when we built and after 7 years.they have never bloomed. Anything I can do to make them bloom? There are a lot of lilac bushes around the neighbourhood that do bloom, but these seem to be in a hedge like planting.

Answer 1

This article will help you:
https://www.gardeningknowhow.com/ornamental/shrubs/lilac/lilac-bush-not-blooming.htm