Why is my hydrangea not growing? These are the most common causes and how to fix it fast so yours blooms beautifully this summer

Hydrangea macrophylla or mophead hydrangeas.

Every year your hydrangea shows it's starting to wake up around now and then gives you months of beautiful blooms – right? But this year, well, it's just not happening.

Whether your hydrangea is potted or in your border, a lot of factors can determine its growth.