Lilac Bushes Not Blooming

Question

I have two established lilac trees that are intertwined to look like one tree. Both trees always bloomed for years. I fertilized in spring and cut the dead flowers. Only one tree bloomed. I also planted a new tree 3 years ago; it’s 5′ tall doing very well except it has never bloomed. There were lilac flowers everywhere, so it’s not the weather. Most trees and bushes were not taken care of. Any suggestions?

Answer 1

This article will offer some suggestions: https://www.gardeningknowhow.com/ornamental/shrubs/lilac/lilac-bush-not-blooming.htm