Q.Hydrangea Bush
Can I cut a Hydrangea back to the ground, and will it grow back better? I have one that hasn’t bloomed in a few years, not sure what to do with it. I got it from my daughter, who built a new home and had to move it about 4 years ago. It hasn’t done well for me. It had big beautiful blooms for her. It is a blue one.

Certified GKH Gardening Expert
It will come back, but it most likely will not fix the blooming problem. This article will help with that:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm