Is Hydrangea toxic to cats and dogs?

Whether Hydrangea is safe for cats and dogs, from the ASPCA's toxic and non-toxic plant list.

Is Hydrangea toxic to cats and dogs?
PlantScientific nameCatsDogsToxic principlesClinical signs
HydrangeaHydrangea arborescensToxic to catsToxic to dogsCyanogenic glycosideVomiting, depression, diarrhea. Cyanide intoxication is rare - usually produces more of a gastrointestinal disturbance.

Common questions

Is Hydrangea toxic to cats?
Toxic to cats.
Is Hydrangea toxic to dogs?
Toxic to dogs.
What makes Hydrangea toxic?
Cyanogenic glycoside.
What are the signs of Hydrangea poisoning?
Vomiting, depression, diarrhea. Cyanide intoxication is rare - usually produces more of a gastrointestinal disturbance.

Sources

Plant Identifier

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