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Deformed hydrangea leaves and flowers #932700

Asked May 23, 2026, 8:21 PM EDT

Can you please tell me why some of my hydrangeas have deformed leaves and flowers. Last year I noticed it mid way through the summer when the blooms had a skeletol appearance. This spring many of our shrubs are not budding out very well and have skinny leaves.

Hennepin County Minnesota

Expert Response

Thanks for the question. Sounds like it could be herbicide damage, or possibly a virus. Here is a link to more information: https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/hydrangea/curledcuppeddistortedleaves.html

Paul -Master Gardener volunteer

An Ask Extension Expert Replied May 23, 2026, 10:58 PM EDT

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