I am new to Hydrangeas but do love their color and constant bloom. I had a landscaper plant 2 Endless Summer in my yard and noticed one is doing better then the other. One looks great while the other has brown spots on most of the leaves and quite a few wilted/dead leaves that have fallen off. I am not sure if it has some kind of fungas or bug. I do water these frequently so I am sure it is not that. Any advice would be most appreciated.