Hydrangeas are a genus of flowering plants native to Asia and the Americas.
Yes, hydrangeas are poisonous to cats. All parts of the hydrangea plant contain a chemical called cyanogenic glycoside, which can be converted to cyanide when ingested.
Symptoms of hydrangea poisoning in cats can include: Vomiting, Diarrhea, Lethargy, Weakness, etc.
If you think your cat has ingested hydrangeas, it is important to seek veterinary attention immediately.
The best way to prevent hydrangea poisoning in cats is to keep hydrangeas out of reach of your pet.
In addition to hydrangeas, there are a number of other plants that are poisonous to cats. Some of the most common include: Lilies, Tulips, Daffodils, etc.