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If your dog ate common rhododendron — do this now

  1. Take the plant away and clear any pieces from their mouth.
  2. Do not induce vomiting unless told to by a professional.
  3. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 now.

Common Rhododendron is toxic to dogs (ASPCA).

Pet emergency

My dog ate Common Rhododendron — what to do

Step by step

  1. Take common rhododendron away and remove any plant material from your dog's mouth so they cannot eat more.
  2. Note roughly how much was eaten and when — this helps the vet judge the risk.
  3. Do NOT induce vomiting unless a vet or poison-control specialist tells you to.
  4. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice.
  5. Watch for drooling, pawing at the mouth, vomiting, loss of appetite, or lethargy, and bring a leaf or photo to the appointment.

This is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide as well as the plant. When in doubt, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435.

My dog ate common rhododendron — FAQ

Is common rhododendron poisonous to dogs?

Yes — the ASPCA lists Common Rhododendron (Rhododendron ponticum) as toxic to dogs. Rhododendron ponticum is toxic to dogs, cats, horses, and humans. All parts contain grayanotoxins (andromedotoxins), which interfere with sodium channels and can cause vomiting, drooling, heart arrhythmia, hypotension, and in severe cases seizures or death. The ASPCA lists Rhododendron species as toxic to dogs and cats. Honey made from rhododendron nectar ('mad honey') is also toxic.

How serious is it if my dog ate common rhododendron?

Common Rhododendron is toxic to dogs and reactions can be significant, so treat any ingestion as urgent. Call your vet or poison control on (888) 426-4435 straight away rather than waiting to see if symptoms develop.

What symptoms should I watch for?

Signs usually appear soon after chewing: drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy. Rhododendron ponticum is toxic to dogs, cats, horses, and humans. All parts contain grayanotoxins (andromedotoxins), which interfere with sodium channels and can cause vomiting, drooling, heart arrhythmia, hypotension, and in severe cases seizures or death. The ASPCA lists Rhododendron species as toxic to dogs and cats. Honey made from rhododendron nectar ('mad honey') is also toxic. Any worsening or persistent symptoms warrant an immediate vet visit.

Should I make my dog vomit?

No — do not induce vomiting unless a vet or the ASPCA Animal Poison Control Center specifically tells you to. The wrong action can make things worse. Call (888) 426-4435 and follow professional advice.

How do I stop this happening again?

Keep common rhododendron well out of reach, or swap it for an ASPCA non-toxic plant — see the best dogs-safe plants list.

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