Is Hydrangea Toxic to Pets?
Yes — hydrangea is mildly toxic to cats. Yes — hydrangea is mildly toxic to dogs. Yes — hydrangea is mildly toxic to horses.
PawSafe Check is for general information only and is not veterinary advice. Always contact your veterinarian or a poison control service if you think your pet has been exposed.
- Scientific name
- Hydrangea spp.
- Toxic compound
- Cyanogenic glycoside (amygdalin)
- Toxic parts
- Leaves, buds and flowers
- Also known as
- hortensia
Symptoms
Cats (mildly toxic)
- Vomiting
- Diarrhea
- Drooling
- Reduced appetite
Dogs (mildly toxic)
- Vomiting
- Diarrhea
- Drooling
- Reduced appetite
Horses (mildly toxic)
- Vomiting
- Diarrhea
- Drooling
- Reduced appetite
What to do
If your cat ate hydrangea
- Remove any plant material from your cat's mouth and keep it out of reach.
- Gently rinse the mouth and offer fresh water.
- Call your vet if symptoms persist, get worse, or your cat is small, young or elderly.
If your dog ate hydrangea
- Remove any plant material from your dog's mouth and keep it out of reach.
- Gently rinse the mouth and offer fresh water.
- Call your vet if symptoms persist, get worse, or your dog is small, young or elderly.
If your horse ate hydrangea
- Remove any plant material from your horse's mouth and keep it out of reach.
- Gently rinse the mouth and offer fresh water.
- Call your vet if symptoms persist, get worse, or your horse is small, young or elderly.
Good to know
Pets rarely eat enough hydrangea for serious problems, but vomiting, diarrhea and lethargy are common after chewing.
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Frequently asked questions
Is hydrangea toxic to cats?
Yes — hydrangea is mildly toxic to cats. Common signs include vomiting, diarrhea, drooling.
Is hydrangea toxic to dogs?
Yes — hydrangea is mildly toxic to dogs. Common signs include vomiting, diarrhea, drooling.
Is hydrangea toxic to horses?
Yes — hydrangea is mildly toxic to horses. Common signs include vomiting, diarrhea, drooling.
Which parts of hydrangea are toxic?
Leaves, buds and flowers.
What makes hydrangea toxic?
Cyanogenic glycoside (amygdalin).
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