Tuesday, September 25, 2007


My hydrangeas were doing fine. Now one is getting black leaves starting at the top. It looks like something is eating them from the outer edge in. My plant is now about 1/4 of the original size. I trimmed off all of the black leaves and it started growing again and now it's starting all over.

-Marie P.

Anne's response:

Your hydrangea may be suffering from summer heat and drought which would cause the black and brown leaves. There are lots of beetles and insects that eat the foliage but hydrangeas usually do not suffer from the insect damage. Anytime you prune a plant it puts on new growth. If the new growth does not develop early enough it gets frozen by the first cold night and frost. That may cause you to lose the spring blooms. Black leaves could also be caused by overwatering a plant or having one that is in an area that does not drain well.

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