Is Chrysanthemum Toxic to Cats and Dogs?
Chrysanthemums are toxic to cats, dogs, and horses. The American Society for the Prevention of Cruelty to Animals includes this popular plant, also known as a mum or daisy, on its list of plants that are toxic to pets.
While often used in gardens and floral arrangements, all parts of the chrysanthemum plant contain compounds that can cause adverse reactions if a pet chews on or eats them. The scientific name for this group of plants is Chrysanthemum spp., and they belong to the Compositae family.
Chrysanthemum: what the ASPCA database lists
| ASPCA entry | Chrysanthemum |
|---|---|
| Other common names | Daisy, Mum; many varieties |
| Scientific name | Chrysanthemum spp. |
| Family | Compositae |
| Toxic to | Toxic to Dogs, Toxic to Cats, Toxic to Horses |
| Non-toxic to | None listed |
| Toxic principles | Sesquiterpene, lactones, pyrethrins and other potential irritants |
| Clinical signs listed | Vomiting, diarrhea, hypersalivation, incoordination, dermatitis |
Why Chrysanthemums Are Toxic to Pets
The ASPCA identifies several substances in chrysanthemums as the source of their toxicity. These include sesquiterpene lactones and pyrethrins, along with other potential irritants. These compounds are found throughout the plant, including the leaves, stems, and flowers.
If a pet ingests part of a chrysanthemum, the ASPCA notes a number of possible clinical signs. These symptoms can include:
- Vomiting
- Diarrhea
- Hypersalivation (drooling)
- Incoordination (loss of balance)
- Dermatitis (skin irritation)
The severity of these signs can depend on how much of the plant the animal consumed. Dermatitis is a skin reaction that could occur from physical contact with the plant, not just from eating it.
Chrysanthemums in a Home with Pets
Having chrysanthemums in a home with pets requires careful management to prevent exposure. Because the entire plant is toxic, a pet could get sick from chewing on a leaf, petal, or stem. Even a small amount may cause a reaction. Curious puppies and kittens are often at a higher risk of exploring new items with their mouths.
The risk is not limited to garden plants. Cut flowers in a vase or potted mums brought indoors present the same hazard. Pet owners should be aware that many different flower varieties are commonly called daisies or mums, and they fall under the toxic Chrysanthemum spp. category.
Keeping Pets and This Plant Apart
The most effective way to prevent a toxic exposure is to keep chrysanthemums completely out of your pet’s reach. For households with cats that climb or dogs that can get onto furniture, this may mean not having the plants in the home at all. If you have chrysanthemums in your garden, supervise your pets closely when they are outside to prevent them from chewing on the plants.
Always check the labels of new plants before bringing them home. If you receive a floral bouquet that contains mums or daisies, it is safest to place it in a room that your pets cannot access. Providing safe, appropriate chew toys and enrichment can also help redirect a pet’s natural curiosity away from household plants.
When to call your vet
If your pet chewed or ate part of this plant, call your veterinarian or an animal poison control line. Note which plant and which part, how much may be gone and when, and take a photo or a piece of the plant with you.
If you suspect your pet has eaten any part of a chrysanthemum, or if it is showing signs like vomiting, drooling, or incoordination, contact your veterinarian or a pet poison hotline immediately. The ASPCA Animal Poison Control Center can be reached at (888) 426-4435. Be prepared to tell the professional what your pet ate, how much you think it consumed, and when it happened. Do not attempt to induce vomiting or give any home remedies unless specifically instructed to do so by a veterinary professional.
Emergency signs: go now
- Collapse, fainting or severe weakness
- Seizures, tremors or trouble standing
- Trouble breathing or blue, gray or very pale gums
- Repeated vomiting or retching, or a swollen, painful belly
- Any known contact with a substance listed as toxic, even before signs appear
Book an appointment soon
- Vomiting or diarrhea that lasts or keeps coming back
- Not eating or drinking, or drinking much more than usual
- Drooling, pawing at the mouth or a swollen face
- Lethargy, hiding or acting unlike themselves
ASPCA Animal Poison Control Center: (888) 426-4435 (a consultation fee may apply). Your own vet or nearest emergency clinic is always a good first call.
Sources
Last checked October 21, 2026. Listings and guidance can change; your veterinarian knows your pet’s health history.