11+ Hydrangeas Turning Brown. In a home landscape, brown spots on the leaves are usually caused by a fungus or bacteria. Check occasionally for pests such as aphids and scale insects, which can cause leaves to shrivel and turn brown.
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In the last couple of months, it seems like every leaf is turning brown/black at the tip which then slowly moves through the rest of the leaf and it becomes dry. Many hydrangea problems can occur if plants aren't receiving enough water. To confirm, look for brown spots on leaf edges.
To confirm, look for brown spots on leaf edges.
Oakleaf hydrangeas also hold up better to dry weather and sandy soil than other types. They are adaptable to many temperatures and environments. Unlike those caused by other. The main reason that hydrangea flowers turn brown is too much sun;