Are Poinsettias Poisonous to Pets or People? We Asked the Experts

Good news: Pet owners and parents can relax.

Poinsettias are the Christmastime superstars of the plant world. Their bold presence and bright hues bring instant holiday cheer to any space, where they'll look dazzling for several weeks. But there is a long-held notion that poinsettias have a dark side. You've probably heard that the festive plant is harmful to pets and people, should they nibble on the leaves. It's easy to believe this idea, considering that the color red in nature often signals danger. However, plenty of research by experts in a variety of fields proves that poinsettias are not actually poisonous. So let's bust this myth and set the record straight.

Poinsettias and Christmas décor with cat
Marty Baldwin

Are poinsettias poisonous?

There are heaps of delicious things to eat around the holidays, but poinsettia leaves aren't among them. The plant tastes terrible. If a child or pet happens to take a bite out of a leaf, it's likely they'll spit it out and not be tempted to nibble any more. But even if they do swallow the leaves, it's usually nothing to worry about.

"Poinsettias contain a milky irritant sap," says Dr. Lisa Murphy, associate professor of toxicology at the University of Pennsylvania School of Veterinary Medicine. "The sap can cause some mild discomfort." That discomfort can include irritated skin and upset stomach, but there is no evidence of long-term effects from eating poinsettias.

So where did this poisonous poinsettia tall tale come from? Researchers at The Ohio State University surmise that it started with an unsubstantiated report in 1919 of a small child dying after chewing on a poinsettia leaf. In 1971, experts at Ohio State tested the toxicity of poinsettias by feeding parts of the plants to rats. The researchers reported their findings in the journal Toxicon, stating that the rats "when given extraordinarily high doses of various portions of poinsettias, show no mortality, no symptoms of toxicity, nor any changes in dietary intake or general behavior pattern." Bottom line: poinsettias are not poisonous!

What if your dog or cat eats a poinsettia leaf?

While there are a few houseplants that can be dangerous to pets, poinsettias won't cause lasting harm. Dr. Murphy says upset stomach is the general symptom resulting from pets snacking on poinsettia leaves and stems. "Your pet might be quieter than usual or have a lack of appetite. Vomiting is also possible." Your pet's upset stomach is usually temporary. "The good news is, the symptoms generally go away on their own without any special care."

"Sometimes pets need a little help to recover," Dr. Murphy says. "Withhold food and water for 1 to 2 hours to give the stomach an opportunity to settle." After a couple of hours, offer food and water. "Remember, you know your pet best. Pets, like people, have individual sensitivities. Expect pets with sensitive stomachs or underlying conditions to be a bit more sensitive." If your pet is still vomiting or experiencing diarrhea 12 to 24 hours after first showing symptoms, give your vet a call.

What to do if your child has a reaction.

Poinsettia's irritating sap can cause a mild skin rash. Wash the area with soap and water and apply a cool compress to ease itching. If a child eats a poinsettia leaf, clear out their mouth and rinse thoroughly with water. Some people are more sensitive to poinsettia plants than others. Those who have latex allergies and those allergic to avocados, bananas, chestnuts, kiwis, or passion fruits might have a greater chance of being allergic to poinsettia plants. In case of a severe reaction, promptly seek medical attention.

How to safely enjoy your poinsettias.

Avoid the hassle of stomach troubles and nibbled plants by thinking like an explorer. "Pets, young animals especially, are just like kids," Dr. Murphy says. "They explore by putting things in their mouth." This exploring is heightened around the holidays when the decor and activity in homes change. "Be mindful during the holidays when we're all so busy. Pets often think any new thing that comes into the house is surely for them, and they are naturally curious." Enjoy your poinsettia by setting it out of reach of curious pets and toddlers.

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  1. "Keep Your Dogs and Cats Safe From Holiday Hazards." U.S. Food & Drug Administration. 2022.

  2. Parisi, Claudio A.S. et al. "Update on Latex Allergy: New Insights Into an Old Problem." World Allergy Organization Journal, vol. 14, no. 8, 2021, Elsevier, doi:10.1016/j.waojou.2021.100569

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