No blooms on lilac bush

Question

I bought this lilac bush 2 years ago and it had a few blooms. To date I have not seen another bloom. The bush looks healthy and is growing – it is about 6 feet tall now. What should I be doing to receive blooms?

Answer 1

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