Are Chrysanthemums Toxic to Cats, Dogs & People?

Are Chrysanthemums Toxic to Cats, Dogs and People?

Yes. Chrysanthemums are considered toxic to cats and dogs, and ornamental garden mums can also cause problems in people. In pets, exposure may cause vomiting, diarrhea, excessive salivation, incoordination, and dermatitis. In people, chrysanthemums are generally considered low-severity poisonous plants. Ingestion of non-culinary plant material, particularly leaves or roots, may cause stomach upset or vomiting, while handling the foliage can trigger allergic contact dermatitis in sensitive individuals.

The important word is context. A dog that chewed a garden mum, a florist who develops an itchy rash after handling chrysanthemums, a person drinking commercially prepared chrysanthemum tea, and a cat exposed to a concentrated insecticide are not experiencing the same kind of exposure.

Several very different safety questions are often collapsed into one: Is the ornamental plant toxic? Are some chrysanthemum petals edible? Can touching the plant cause dermatitis? Are pyrethrin or pyrethroid pesticides dangerous? The answer depends on what was involved, who was exposed, how the exposure happened, and what symptoms are developing.

1 Why Are Chrysanthemums Toxic?

Chrysanthemums contain several compounds capable of causing irritation or toxic effects. The ASPCA lists sesquiterpenes, lactones, pyrethrins, and other potential irritants among the toxic principles associated with Chrysanthemum species.

These compounds do not all act in exactly the same way. Sesquiterpene lactones are particularly important in chrysanthemum allergy and contact dermatitis, while ingestion of ornamental plant material can cause gastrointestinal and other clinical signs in animals.

That is why chrysanthemum exposure can look very different depending on who or what was exposed. A pet that eats plant tissue may develop digestive or neurologic signs, while a sensitive gardener may react primarily through the skin.

2 Are Chrysanthemums Toxic to Cats?

Yes. Chrysanthemum species are considered toxic to cats. Possible signs include vomiting, diarrhea, excessive salivation, incoordination, and dermatitis.

A cat that chews leaves, flowers, stems, or other chrysanthemum material may develop digestive upset or drooling. Incoordination is a more concerning sign and should prompt veterinary advice.

Not every cat will develop every symptom. The response can vary with the amount involved, the individual animal, and whether another substance was present on the plant.

That last point matters. If the mum was recently treated with an insecticide, fertilizer, fungicide, or another garden product, tell your veterinarian or poison-control service exactly what was used.

3 Are Chrysanthemums Toxic to Dogs?

Yes. Mums are also considered toxic to dogs. Possible signs include vomiting, diarrhea, excessive salivation, incoordination, and dermatitis.

Dogs may be exposed by chewing plants directly, eating fallen flowers, investigating garden trimmings, or pulling apart a seasonal container.

When evaluating an exposure, do not focus only on the plant. A potted chrysanthemum may also contain fertilizer granules, systemic treatments, slug products, insecticides, or other substances that can change the risk considerably.

Save the nursery label if possible, photograph the plant, and keep any pesticide or fertilizer packaging available when speaking with a veterinary professional.

4 Symptoms of Chrysanthemum Poisoning in Cats and Dogs

Possible clinical signs involve the digestive system, nervous system, mouth, and skin. A pet may develop one sign or several.

These symptoms are not unique to chrysanthemum poisoning. Vomiting, diarrhea, drooling, or poor coordination can have many causes, which is why plant identification and a reliable exposure history matter.

5 What to Do if Your Cat or Dog Eats a Chrysanthemum

If you know or suspect that your pet has eaten a mum, remove access and collect the information that will help a veterinary professional assess the exposure.

• Move the pet away from the plant. Pick up loose flowers, leaves, stems, and trimmings.
• Identify the plant. Save the label or take clear photographs.
• Estimate the amount if possible. Note whether the pet only mouthed the plant or appears to have swallowed a larger amount.
• Check for other products. Record pesticides, fertilizers, floral preservatives, or other treatments used on or around the plant.
• Watch for symptoms. Look for vomiting, diarrhea, excessive drooling, incoordination, or skin irritation.
• Contact your veterinarian or an animal poison-control service. They can assess the exposure using your pet’s species, size, age, health, symptoms, and likely dose.

The ASPCA Animal Poison Control Center can be reached at (888) 426-4435 in the United States. A consultation fee may apply.

6 Are Chrysanthemums Poisonous to People?

Chrysanthemums are generally considered low-severity poisonous plants for people rather than highly dangerous garden poisons. Ingestion of non-culinary chrysanthemum plant material, particularly leaves or roots, may cause stomach upset or vomiting, while contact with the foliage can cause dermatitis in sensitive individuals.

Contact dermatitis is particularly well documented. Chrysanthemums belong to the Asteraceae family and contain allergenic sesquiterpene lactones that can trigger allergic skin reactions.

A reaction may begin on the fingers or hands after pruning, pinching, deadheading, or handling flowers and may spread to the wrists, forearms, or face. Frequent occupational exposure among florists and horticultural workers is especially well documented, but home gardeners can also become sensitized.

If non-culinary plant material is eaten and symptoms develop, or if a child consumes an uncertain amount, contact a medical professional or poison-control service for individualized guidance. Severe swelling, breathing difficulty, or another rapidly worsening reaction requires urgent medical attention.

7 If Chrysanthemums Are Toxic, Why Are Some Eaten?

This is one of the most confusing parts of chrysanthemum safety. Some chrysanthemums have a long history of culinary use, and chrysanthemum petals and prepared flowers are used in foods and teas in several cultures.

That does not mean every ornamental mum is edible.

Edibility depends on several separate factors:

• Plant identity: Plants selected or sold specifically for culinary use should not automatically be equated with ornamental florist or garden mums.
• Plant part: Edible petals or prepared flowers do not make the leaves, roots, sap, or entire plant safe to eat.
• Intended use: A nursery plant grown for decoration may not have been produced under standards appropriate for food.
• Preparation: Culinary traditions may use dried, cooked, blanched, infused, or otherwise prepared plant material.
• Pesticide history: Ornamental chrysanthemums may have been treated with pesticides not intended for edible crops.
• Individual sensitivity: People allergic to chrysanthemums or related Asteraceae plants may react even to material with a history of culinary use.

In practical terms, do not eat a florist mum or garden-center chrysanthemum simply because chrysanthemum tea or edible chrysanthemum petals exist.

8 Garden Mums vs Pyrethrin and Pyrethroid Insecticides

Chrysanthemums are often associated with pyrethrins, but an important botanical distinction is needed.

Commercial natural pyrethrins are obtained principally from pyrethrum, Tanacetum cinerariifolium, a plant historically classified as Chrysanthemum cinerariifolium. This historical naming is one reason chrysanthemums and pyrethrins are often discussed together.

That should not be interpreted to mean that chewing an ornamental garden mum is equivalent to exposure to a concentrated pyrethrin insecticide.

Commercial pyrethrins are insecticidal compounds obtained primarily from the flower heads of pyrethrum and formulated into pesticide products. Synthetic pyrethroids are chemically related manufactured insecticides designed to mimic or improve on pyrethrin activity.

The distinction matters especially for cats because some pyrethroids, particularly permethrin, can cause serious neurologic poisoning in cats.

9 Which Parts of a Chrysanthemum Are Toxic?

For pet safety, the simplest approach is to treat the ornamental chrysanthemum plant as unsuitable for chewing rather than trying to identify a safe part.

For people, plant-safety references specifically identify leaves, roots, and sap or juice as parts capable of causing poisoning or irritation. The foliage is also an important source of contact allergens.

Flowers require more nuance because some chrysanthemum petals and prepared flowers are intentionally used in food and tea. That culinary history does not make every ornamental flower safe to eat.

The distinction is simple:

Fresh trimmings also deserve attention in homes with pets. Deadheaded flowers and cut stems may be easier for a curious dog or cat to investigate than foliage attached to the plant, so dispose of them where pets cannot reach them.

10 Are Some Chrysanthemum Varieties Safe for Pets?

There is no established group of ornamental Chrysanthemum cultivars that should be considered pet-safe simply because of flower color, flower form, compact size, hardiness, or cultivar name.

A yellow cushion mum is not known to be safer than a pink decorative mum, a spider mum, or a large perennial chrysanthemum.

The same practical caution applies to florist mums and hardy garden mums. Their horticultural differences affect flowering, hardiness, and overwintering, but they do not create a reliable pet-safety distinction.

11 Can You Grow Mums if You Have Cats, Dogs or Children?

Many households grow chrysanthemums without incident. The practical risk depends heavily on behavior and access.

A mature dog that ignores plants is very different from a puppy that chews everything. Likewise, an outdoor cat that never approaches a mum border has a different exposure risk from an indoor cat sharing a room with a potted florist chrysanthemum.

If you grow mums around pets or children:

• Place containers where they cannot easily be reached or knocked over.
• Do not leave deadheaded flowers or pruning debris accessible.
• Keep nursery labels so the plant can be identified accurately.
• Store pesticides, fertilizers, and plant-care products separately and securely.
• Wear gloves if you have experienced chrysanthemum-related dermatitis.
• Use non-toxic alternatives in areas used by persistent plant chewers.

For complete cultivation information, see Gardenia’s Chrysanthemum Growing and Care Guide or browse the Chrysanthemum collection.

12 Looking for Pet-Safer Garden Plants?

If your cat or dog routinely chews plants, it may be easier to avoid chrysanthemums in highly accessible areas and choose plants with a better-established non-toxic profile.

This is where Gardenia can take the question beyond a yes-or-no toxicity answer. Knowing that a mum is unsuitable for a plant-chewing pet solves only the first problem. The next is finding a replacement that performs the same garden role under the same conditions.

Gardenia’s Chrysanthemum Plant-or-Product Exposure Check: Who was exposed? What exactly was involved? How did the exposure occur? What symptoms are developing? Those four questions help distinguish ornamental-plant ingestion, skin contact, culinary use, and pesticide exposure – and point toward the appropriate next step.

Frequently Asked Questions

References

• ASPCA Animal Poison Control Center – Chrysanthemum – toxicity to dogs, cats, and horses; clinical signs including vomiting, diarrhea, hypersalivation, incoordination, and dermatitis.
• North Carolina State Extension – Chrysanthemum x morifolium – low-severity human toxicity, stomach upset, vomiting, dermatitis, poisonous plant parts, and edible-use information.
• DermNet – Chrysanthemum Allergy – chrysanthemum-associated contact dermatitis and sesquiterpene lactone allergy.
• Merck Veterinary Manual – Plant-Derived Insecticide Toxicosis – pyrethrin and pyrethroid toxicology and feline sensitivity to some pyrethroids.
• Royal Horticultural Society – Edible Flowers – culinary use of chrysanthemum petals and precautions for flowers intended for eating.

Updated: September 2026 – Reviewed by Gardenia Editors