My Hydrangeas were pruned 2 years ago and haven't had a bloom since and not growing. I live in central NJ. They are bout 10 years old. Any suggestions are very much appreciated.
Hydrangea Not Growing or Blooming
Certified GKH Gardening Expert
There could be few reasons for your lack of flowers.
Improper pruning and to much Nitrogen in the soil are the likely issues.
You do need to know what type of Hydrangea you have as some bloom on old wood and some on new wood.
Here are a few links with more information.