Is Azalea Toxic to Cats and Dogs? (Rhododendron spp.)
Azalea, Rhododendron spp.: listed as toxic to cats and dogs (grayanotoxin). Signs, what to do, and how to confirm the species.
At a glance
- Scientific name: Rhododendron spp.
- Also called: Rosebay, Rhododendron
- Toxic to cats: Yes
- Toxic to dogs: Yes
- Toxic principle: Grayanotoxin
- Signs reported: Vomiting (not in horses), diarrhea, weakness, cardiac failure
Is Azalea toxic to cats and dogs?
ASPCA Animal Poison Control lists Azalea (Rhododendron spp.) as toxic to cats and dogs. The toxic principle is Grayanotoxin. Signs reported: Vomiting (not in horses), diarrhea, weakness, cardiac failure.
How serious it can be
The clinical signs in the original source include "cardiac failure" — this plant has cardiotoxic effects.
What to do if your pet ate it
If a pet may have eaten a plant, contact a veterinarian, ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661. Note what was eaten, how much and when, and bring a photo or a piece of the plant. Do not induce vomiting or give home remedies unless a professional tells you to.
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Confirm it is really this plant
Toxicity lists are by species, and many houseplants look alike. Photograph the whole plant, a leaf close-up and any flower in even light; the app reads the species first, then you can check it here. If the species is uncertain, act as if it were toxic.
FAQ
Is Azalea safe for cats?
No. It is listed as toxic to cats; reported signs include vomiting (not in horses).
Is Azalea safe for dogs?
No. It is listed as toxic to dogs.
My pet only chewed a leaf. Should I still call?
Yes. Amount, size of the animal and the part eaten all matter, and the hotlines are staffed to judge that. Calling early is cheaper than waiting for signs.
Related
Sources
Updated 2026-09-11.