Hydrangeas not doing well this year
I have 7 Limelight hydrangea bushes planted next to the house on the east side. They were planted about 4 years ago. Normally most of them are full of leaves and lots of blooms. This year several of them are not leafing out well. In fact, a couple of them have very few leaves. It's too early in my zone 3 for blooms. I pruned them for the first time in early spring. I only cut off the tallest stems as I would like them to grow in width instead of more height. They have been such beautiful plants in the past and I don't know what is wrong this year. Any help would be greatly appreciated.