15+ Why Are My Hydrangea Leaves Turning Brown. One reason your hydrangea leaves might be turning brown is because of an issue during transplantation. A problem many people have is there hydrangea leaves wilting and turning brown.
I have an endless summer hydrengea newly planted this spring, it has beautiful pink flowers and they are now turning brown.
Sooty mould is a harmless fungus that coats leaves. There are several reasons why hydrangea blossoms turn brown, and one of the most common causes is that the plant does not get enough water pruning dead stems should not be done until after the late summer. Why are my hydrangea flowers dying, but the leaves look ok? You may be having to water them every 5 minutes during the day or faster ;o) if you have.