What Is Happening To My Hydrangeas???

Question

It has been a hot summer. Mushrooms have grown in the lawn near this.

Answer 1

Unfortunately, your photo did not come through. I cannot assess the damage. Usually, conditions for mushrooms to grow are far too wet for plants to thrive happily, so I suspect overwatering.

Here is an article to help you with general hydrangea care:

https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/growing-hydrangeas-hydrangea-care-guide.htm