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Is Chrysanthemum Toxic to Dogs? Signs and What to Do

PawAI Lab
6 min read

Find out whether chrysanthemums pose a risk to dogs, what signs of gastrointestinal and neurological upset may appear after ingestion, and what steps a veterinarian may recommend.

Quick Answer

Chrysanthemums are potentially harmful to dogs. The plants contain pyrethrins and sesquiterpene lactones, which can cause gastrointestinal upset, drooling, and in some cases neurological signs such as incoordination or tremors if enough is ingested. If your dog has eaten any part of a chrysanthemum, contact a veterinarian or animal poison-control service for guidance.

Before using any tool, contact a veterinary professional if your dog may have eaten chrysanthemum.

  • US: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • UK: Animal PoisonLine (01202 509000) or your nearest veterinary emergency clinic
  • Canada: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • AU: Animal Emergency Centre or your regular vet
  • EU: Contact your nearest veterinary emergency service

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Safety Verdict

Potentially Harmful. Chrysanthemums (Chrysanthemum and Leucanthemum species) contain several compounds that can affect dogs, with pyrethrins and sesquiterpene lactones being the most significant. Pyrethrins are natural insecticidal compounds that act on the nervous system. While they are used in some flea and tick products for dogs at controlled doses, ingestion of the plant itself can deliver these compounds in a less predictable manner.

Sesquiterpene lactones are bitter compounds that can irritate the gastrointestinal tract and, in sufficient amounts, may contribute to neurological effects. All parts of the chrysanthemum plant, including the flowers, leaves, and stems, contain these compounds.

Because chrysanthemums are common garden and potted plants, dogs may encounter them in yards, on patios, or in cut-flower arrangements indoors.

What Should the Owner Do Now?

  1. Contact a veterinarian or animal poison-control service for guidance, especially if your dog is vomiting, drooling, or showing any neurological signs.
  2. Remove any remaining plant material from your dog's mouth if it is safe to do so, and prevent further access to the plant.
  3. Do not induce vomiting unless a veterinarian or poison-control professional directly instructs you to do so. Inducing vomiting at home can be risky.
  4. Collect relevant information (see the section below) so the veterinary team can assess the situation accurately.
  5. Do not give food, milk, salt, charcoal, or any home remedy. These are not proven treatments for chrysanthemum toxicity.
  6. Follow the veterinarian's instructions regarding whether to bring your dog in for examination or supportive care.

What Signs May Occur?

Signs of chrysanthemum ingestion in dogs may develop within a few hours of exposure, though the timeline can vary based on the amount consumed.

Common signs may include:

  • Vomiting
  • Diarrhea
  • Excessive drooling
  • Loss of appetite
  • Lethargy

In cases where a larger amount is ingested, additional signs may include:

  • Incoordination or unsteady gait
  • Muscle tremors
  • Skin irritation or redness, particularly around the mouth or on areas that contacted the plant

Most cases of chrysanthemum ingestion in dogs result in mild to moderate gastrointestinal upset. However, because pyrethrins can affect the nervous system, neurological signs are possible with larger ingestions. The absence of signs does not necessarily rule out risk, and symptoms may take time to develop.

What Information Should Be Ready?

When you contact a veterinarian or poison-control service, having the following details available can help them assess the situation:

  • Dog's details: species, breed, approximate age, and body weight
  • Plant identification: confirm whether the plant is a chrysanthemum; a photo or plant label can help
  • Part of plant consumed: flowers, leaves, stems, or the whole plant
  • Estimated amount: best guess of how much plant material was ingested
  • Time of ingestion: when the exposure occurred, or the window of time during which it may have happened
  • Current symptoms: any vomiting, drooling, incoordination, tremors, or skin irritation
  • Medical history: any pre-existing neurological conditions, liver disease, current medications, or other health concerns

Differences That May Affect Risk

Several factors may influence how severely a dog is affected:

  • Amount ingested: A small taste may cause mild stomach upset, while consuming larger quantities increases the risk of neurological effects.
  • Body size: Smaller dogs may be more affected by a given amount of plant material.
  • Existing health conditions: Dogs with liver disease, neurological conditions, or those taking certain medications may be more sensitive to pyrethrins.
  • Concurrent exposure: If a dog is already receiving a pyrethrin-based flea or tick product, additional ingestion of chrysanthemum could compound the exposure. Mention all current parasite-control products to the veterinarian.

When to Contact a Veterinarian

Contact a veterinarian or animal poison-control service if your dog has eaten any part of a chrysanthemum, particularly if vomiting, drooling, or neurological signs are present.

Emergency signs that require urgent veterinary attention include:

  • Persistent vomiting or diarrhea
  • Incoordination, stumbling, or inability to stand
  • Muscle tremors or seizures
  • Extreme lethargy or unresponsiveness
  • Signs of collapse

Non-urgent follow-up: If your dog ate a very small amount and shows no signs, a veterinarian can advise whether monitoring at home is appropriate or whether an examination is recommended.

FAQ

Are all chrysanthemum varieties toxic to dogs?

Chrysanthemum species and cultivars generally contain pyrethrins and sesquiterpene lactones, though the concentration can vary by variety. All chrysanthemums should be considered potentially harmful to dogs. If you are unsure of the specific variety, treat any ingestion as a potential exposure and consult a veterinarian.

Can chrysanthemum cause skin irritation in dogs?

Yes, chrysanthemum leaves and stems can cause contact dermatitis in some dogs, leading to redness, itching, or irritation of the skin or mouth. If your dog has brushed against the plant and shows skin irritation, rinse the affected area with water and contact a veterinarian for guidance.

Is it safe to use pyrethrin flea products if my dog ate chrysanthemum?

If your dog has ingested chrysanthemum, tell your veterinarian about any current flea or tick products your dog is using. Pyrethrin-based parasite treatments are dosed for safety, but additional exposure from the plant could compound the total amount in your dog's system. A veterinarian can advise on any adjustments needed.

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Disclaimer

This article and the PawAI Toxicity Checker provide general safety information and cannot determine an individual pet's toxicity risk or replace a veterinarian or animal poison-control service. If exposure may have occurred, contact an appropriate professional promptly, even if your pet appears well.

Written by PawAI Lab