Experts and BHG readers answer.
How to keep hydrangea healthy and avoid droopy leaves?
Thanks for writing. It sounds like you may have two situations going on. I'd guess one reason the flowers are smaller is that the plant was recently transplanted and is adapting to its new spot.
The reason the leaves are drooping is probably from the afternoon sun. Giving it some shade during the hottest part of the day will help. Can it survive another move? Probably --- these plants are more resilient than many people think. Just be sure to keep it well hydrated and it should be fine.
---Justin, Senior Garden Editor, BHG.com