Hydrangea Flower Size

Question

I have an established mop head hydrangea which blooms every year. This year the flowers are smaller than usual. What should I do to ensure large flowers next year?

Answer 1

Pruning could be a factor. Here is an article or two that you may find helpful: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/prune-hydrangea-bushes-hydrangea-pruning-instructions.htm