Hydrangeas: Is this leaf scorch?, 1 by Meig

Meig wrote:
I am a total newbie to hydrangeas. I picked up some Forever & Ever and I put them in the ground in late April. The area is sun in the morning until about 1, then shade for the rest of the day.

This weekend was our first really hot weather, and I noticed them wilting for the first time since I planted them. After watering, they perked right up. However, now they have brown curling edges and dead leaves. I did water them in the sunny part of their day, and I just gave them a good soaking but the water was left on the leaves when I was done. The next day I had all the crunchy leaves.

Are these plants the type that need to keep their leaves dry when they are in the sunny part of the day? I just think that these leaves are scorched and that's why they are all brown and crunchy. Am I right?