Are Peonies Poisonous to Dogs?

By Dr. Zubair Khalid, DVM, MS, PhD ·

Are Peonies Poisonous to Dogs?

Are peonies poisonous to dogs? Yes. Peonies contain a toxic compound called paeonol, and every part of the plant, including petals, leaves, stems, and roots, can make your dog sick if eaten. Most cases are mild, but a dog that chews through a lot of plant material may need veterinary care.

This article is educational and is not a substitute for veterinary diagnosis or treatment.

Quick Answer

  • Peonies are toxic to dogs. The toxin is concentrated in the roots and bark, but petals, leaves, and stems also contain it.
  • The most common signs are vomiting, diarrhea, drooling, and stomach pain. These usually appear within a few hours of eating the plant.
  • A single chewed petal or leaf often causes only mild stomach upset. Eating a large amount, especially roots or bark, raises the risk of more serious signs.
  • Call your veterinarian, the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661 right away if your dog ate any part of a peony.
  • Do not make your dog vomit unless a veterinarian tells you to.

Are Peony Plants Poisonous to Dogs?

Yes. Peony plants are poisonous to dogs. The toxic compound, paeonol, is found throughout the plant. It is most concentrated in the roots and the bark of woody stems, but it is also present in flowers, leaves, and seeds.

This matters because peonies are common garden and cut-flower plants. A dog running through a flower bed may bite at stems. A dog indoors may knock over a vase and chew the flowers. Both situations can lead to poisoning.

Plant poisonings in dogs and cats are less common than in livestock, but they do happen, and ornamental garden and house plants are among the most frequent culprits worldwide [1]. In one 12-year survey of pet poison center calls, dogs were the most commonly poisoned species, accounting for about 62 percent of cases [2]. That does not mean every plant is equally dangerous, but it does show how often dogs get into plants they should not eat.

If you want a broader picture of which plants to worry about, see Plants Poisonous To Dogs.

Which Parts of the Peony Are Toxic?

All parts of the peony plant contain paeonol. The roots and bark have the highest concentration. Petals and leaves have less, but they are still toxic.

This means there is no "safe" part of a peony for your dog to chew. A dropped petal from a bouquet is a small exposure. A dug-up root ball is a much bigger one.

Are Cut Peonies From a Florist a Risk?

Yes. Cut peonies sold in bouquets are the same plant. The flowers, leaves, and stems all contain paeonol. If your dog pulls a stem out of a vase and chews it, that counts as exposure.

Florist flowers can also carry pesticides or floral preservatives. Those add another layer of risk that your veterinarian will want to know about.

What Is the Toxic Principle in Peonies?

The main toxic compound in peonies is paeonol. It is a phenolic compound that irritates the gastrointestinal tract.

When a dog eats peony plant material, paeonol contacts the lining of the mouth, stomach, and intestines. That irritation triggers the body's vomiting reflex and can cause diarrhea. Some dogs also drool heavily because the plant tastes unpleasant and irritates the mouth.

The exact toxic dose of paeonol in dogs is not well established in veterinary research. That means no one can tell you a specific number of petals or grams of root that will definitely make your dog sick. Your veterinarian will assess your dog based on body weight, how much plant was eaten, and what signs are showing.

This is different from plants with a well-measured toxic threshold. For example, grayanotoxin poisoning from certain ornamental shrubs has an estimated toxic dose in ruminants of about 0.1 percent of body weight in fresh foliage [3]. No equivalent figure exists for peony in dogs.

Peony Poisoning Symptoms in Dogs

Signs of peony poisoning in dogs are mostly gastrointestinal. They usually start within a few hours of eating the plant.

Common signs include:

  • Vomiting
  • Diarrhea
  • Drooling
  • Loss of appetite
  • Stomach pain or tenderness
  • Lethargy

Less common signs include tremors, weakness, or changes in behavior. These are more likely with large exposures, such as eating roots or a large amount of bark.

How Soon Do Signs Appear?

Most dogs show signs within 2 to 6 hours of eating peony plant material. Mild cases may resolve on their own within a day. More significant exposures can cause signs that last longer or get worse.

If your dog ate peony and is not showing signs yet, that does not mean you should wait. Call your veterinarian or a poison control line for guidance. Early advice can prevent a mild case from becoming a serious one.

When Is It an Emergency?

It is an emergency if your dog is vomiting repeatedly, has bloody diarrhea, seems weak or wobbly, collapses, or has a seizure. These signs suggest a larger exposure or a reaction that needs immediate treatment.

It is also an emergency if you know your dog ate a large amount of peony root or bark, even if signs have not started yet.

Dog Ate Peony: What to Do Right Now

Stay calm and act quickly. Here are the steps.

  1. Move your dog away from the plant. Remove any plant material from your dog's mouth if you can do it safely.
  2. Figure out what was eaten and how much. Note which part of the plant (petals, leaves, stems, roots) and roughly how much.
  3. Call for advice. Contact your veterinarian, the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661.
  4. Do not induce vomiting unless a veterinarian tells you to. Making a dog vomit when it is not appropriate can cause harm.
  5. Save a sample of the plant. If you can, keep a piece of the plant or a photo for identification.

If your dog ate something else questionable, the same steps apply. You can read about other common household exposures in My Dog Ate a Pen: Is It Toxic or Just a Blockage Risk? and My Dog Ate a Mushroom: How to Tell If It's Toxic.

What Not to Do

Do not wait for signs to appear before calling. Do not give human medications without veterinary direction. Do not feed your dog milk, oil, or home remedies to "soak up" the toxin. None of these are proven to help, and some can make things worse.

How Veterinarians Treat Peony Poisoning in Dogs

Treatment depends on how much your dog ate and what signs are present.

For mild cases, your veterinarian may recommend monitoring at home and a bland diet for a day or two. They may also give anti-nausea medication or a stomach protectant.

For more serious cases, treatment may include:

  • Intravenous fluids to correct dehydration from vomiting and diarrhea
  • Anti-vomiting medications
  • Activated charcoal, in some cases, to bind remaining toxin in the gut
  • Blood work to check organ function and electrolyte levels

Your veterinarian will calculate any medication doses based on your dog's weight and health. There is no single home dose that applies to every dog.

If your dog ate a large amount of plant material, your veterinarian may also want to check for a blockage. Plant material can clump in the stomach or intestines, especially fibrous stems and roots.

Outlook for Dogs That Ate Peonies

The outlook is generally good for dogs that eat a small amount of peony. Most mild cases resolve within 24 to 48 hours with supportive care.

In a large survey of plant poisonings in pets, most exposures (about 74 percent) caused mild to moderate signs [2]. Fatal plant poisonings are much less common, but they do happen. In that same survey, fatal cases accounted for about 11 percent of cases where an outcome was recorded [2].

The dogs at highest risk are those that eat a large amount of the plant, especially roots or bark, or those with underlying health problems. Puppies and small dogs may also be more vulnerable because a smaller amount of plant material represents a larger dose relative to their body weight.

Preventing Peony Poisoning in Dogs

Prevention is straightforward. Keep peonies out of your dog's reach.

If you have peonies in your yard, plant them in a fenced area or a raised bed your dog cannot access. If you keep cut peonies indoors, place the vase on a high shelf or in a room your dog cannot enter.

Train your dog to leave plants alone. A simple "leave it" cue can prevent a lot of trouble.

Safer Alternatives to Peonies

If you want flowers that are safer around dogs, ask your veterinarian or a knowledgeable nursery staff member for pet-safe options. Some common garden plants are also toxic, so check before you plant.

For a wider list of plants to avoid, see Plants Poisonous To Dogs. If you are worried about other animals in your home, Are Tarantulas Poisonous to Dogs? Understanding the Risks covers a different kind of household hazard.

Limitations and When to Contact a Veterinarian

No article can tell you exactly what will happen to your dog. Individual cases need a veterinarian who can examine your dog, ask about the exposure, and decide on treatment.

Contact your veterinarian the same day if your dog ate peony and has mild vomiting or diarrhea that is not getting worse.

Go to an emergency clinic now if your dog has repeated vomiting, bloody diarrhea, weakness, collapse, tremors, or seizures.

Schedule a routine visit if your dog ate a small amount of peony, seems fine, but you want to confirm that no treatment is needed.

Frequently Asked Questions

Are peonies toxic to dogs?

Yes, peonies are toxic to dogs. All parts of the plant contain paeonol, which irritates the gastrointestinal tract and causes vomiting, diarrhea, and drooling. The roots and bark have the highest concentration of the toxin.

Will a dog get sick from eating one peony petal?

A single petal often causes only mild stomach upset or no signs at all. However, every dog is different, and a small dog may react more strongly than a large one. Call your veterinarian or a poison control line for advice if you are unsure.

How long does peony poisoning last in dogs?

Mild cases usually resolve within 24 to 48 hours with supportive care. More serious cases may take longer, especially if vomiting and diarrhea lead to dehydration. Your veterinarian can give you a better timeline after examining your dog.

Can I treat peony poisoning at home?

No. Do not induce vomiting or give human medications unless a veterinarian tells you to. Home treatment can delay proper care and may cause additional harm. Call your veterinarian or a poison control line for guidance.

Are peony roots more dangerous than the flowers?

Yes, the roots and bark contain the highest concentration of paeonol. A dog that digs up and chews a peony root has a larger exposure than a dog that eats a single petal. That larger exposure raises the risk of more serious signs.

Related Articles

References

  1. Potential plant poisonings in dogs and cats in southern Africa. Journal of the South African Veterinary Association, 2009.
  2. Plant poisoning in domestic animals: epidemiological data from an Italian survey (2000-2011). The Veterinary record, 2013.
  3. Grayanotoxin poisoning in animals following the ingestion of Ericaceae plants. Veterinary journal (London, England : 1997), 2026.

Further Reading