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Poison Control Center
at The University of Kansas Health System
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Scientific name


Common name

Mountain hydrangea, French hydrangea, PeeGee hydrangea, oak-leaf hydrangea



Toxicity: 2 

Ingestion may cause minor symptoms such as rash, vomiting or diarrhea

Toxic parts

All parts


Round/umbrella-shaped clusters, white, pink, blue in color.


Shrubs leaves opposite, simple, stalked, toothed and sometimes lobed

24-hour Poison Control Center hotline: 1-800-222-1222


The list of poisonous plants on this website does not necessarily include every poisonous plant that is known or that might be found in a home or yard. The University of Kansas Health System does not advise eating any of the plants listed on this website. We discourage the use of any of these plants for self medication. The information on this site is taken from literature, and the degree of reliability is unknown. In case of accidental exposure or ingestion, contact the Poison Center 1-800-222-1222.


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