Yes, azaleas are highly toxic to cats
Azaleas and rhododendrons contain grayanotoxins, which interfere with sodium channels in heart and muscle cells. Eating as little as 0.2% of body weight in leaves can cause serious poisoning.
Azaleas and cats: key facts
| Toxic to cats? | Highly toxic |
| Toxic to dogs? | Highly toxic |
| Scientific name | Rhododendron spp. |
| Also called | rhododendron, rosebay |
| Toxic compound | Grayanotoxins |
| Toxic parts | All parts, including the nectar |
| Signs usually start | Usually within a few hours |
| Plant type | Garden plant |
Symptoms of azaleas poisoning in cats
- Vomiting and drooling
- Diarrhea
- Weakness and collapse
- Low blood pressure
- Abnormal heart rhythm
- Tremors, seizures or coma
Why azaleas are toxic to cats
Grayanotoxins keep sodium channels in heart, nerve and muscle cells open. This causes vomiting and drooling at first, then weakness, low blood pressure, a slow or irregular heartbeat, and in severe cases coma or death.
What to do if your cat ate azaleas
- Remove plant pieces from your cat's mouth and move cats away from the plant. Wipe sap or pollen off the fur and paws with a damp cloth.
- Call an emergency vet or animal poison control immediately, even if your cat seems normal: ASPCA Animal Poison Control: (888) 426-4435 · Pet Poison Helpline: (855) 764-7661. Signs can be delayed while damage is happening.
- Identify the plant. Take a photo or bring a piece (or the plant label) to the vet, and estimate how much was eaten and when.
- Do not make your cat vomit unless a vet tells you to. Home remedies such as hydrogen peroxide or salt can cause serious harm, and hydrogen peroxide is not safe for cats.
- Watch for vomiting and drooling, diarrhea, weakness and collapse. Do not wait for these signs before getting help.
Treatment and outlook
This is an emergency. Treatment includes decontamination, IV fluids, heart monitoring and medicines to support heart rate and blood pressure. Most pets recover with prompt care.
How to keep your cat away from azaleas
- Place azaleas on high shelves or in hanging planters away from furniture cats can climb, or in a room your cat cannot enter.
- Give your cat something better to chew: a pot of cat grass or catnip often distracts cats from houseplants.
- Pick up fallen leaves, petals and pollen promptly, and empty vases where pets can reach them.
- In the garden, fence off beds, supervise cats that dig, and store bulbs in a closed container before planting.
Pet-safe alternatives to azaleas
If you love flowers, these are listed as non-toxic to cats by the ASPCA:
- LilacsNon-toxic
- RosesNon-toxic
- OrchidsNon-toxic
- SunflowersNon-toxic
- Gerbera DaisiesNon-toxic
- Christmas CactusNon-toxic
- Spider PlantsNon-toxic
- Money TreesNon-toxic
See the full list of plants safe for cats.
Azaleas and cats: FAQ
Are azaleas poisonous to cats?
Azaleas are highly toxic to cats and can be fatal. If your cat ate any part of these plants, treat it as an emergency.
What part of azaleas is toxic to cats?
All parts, including the nectar.
Can cats die from eating azaleas?
Yes. Azaleas can be fatal to cats, which is why any exposure needs emergency veterinary care.
How long after eating azaleas will my cat show symptoms?
Usually within a few hours.
Are azaleas toxic to dogs too?
Yes, azaleas are highly toxic to dogs.
Other plants toxic to cats
- LiliesHighly toxic
- OleanderHighly toxic
- Sago PalmsHighly toxic
- FoxgloveHighly toxic
- Lily of the ValleyHighly toxic
- YewHighly toxic
- Autumn CrocusHighly toxic
- DaffodilsToxic
Sources
- ASPCA Animal Poison Control: Toxic and Non-Toxic Plants for Cats
- Merck Veterinary Manual: Poisonous Plants
Toxicity ratings follow the ASPCA Animal Poison Control Center plant lists. Severity depends on the amount eaten, the part of the plant and your cat's size and health. When in doubt, call your vet.