Is Eucalyptus Toxic to Cats and Dogs?
All parts of the eucalyptus plant are toxic to both cats and dogs. The American Society for the Prevention of Cruelty to Animals (ASPCA) includes Eucalyptus species on its list of plants that are harmful to pets if they eat them.
The toxicity comes from essential oils, specifically eucalyptol, which are present throughout the plant. This means that both fresh and dried leaves, stems, and bark pose a risk. Pet owners should ensure their animals do not have access to eucalyptus plants or decorative arrangements containing them.
Eucalyptus: what the ASPCA database lists
| ASPCA entry | Eucalyptus |
|---|---|
| Other common names | Many cultivars |
| Scientific name | Eucalyptus species |
| Family | Myrtaceae |
| Toxic to | Toxic to Dogs, Toxic to Cats, Toxic to Horses |
| Non-toxic to | None listed |
| Toxic principles | Essential oils: eucalyptol |
| Clinical signs listed | Salivation, vomiting, diarrhea, depression, weakness |
What the ASPCA says about eucalyptus
Eucalyptus species are identified as toxic to cats, dogs, and horses. The toxic components are essential oils, with eucalyptol being a primary one. If a pet ingests parts of the plant, it can lead to a range of digestive and neurological issues.
Clinical signs of eucalyptus poisoning can include:
- Salivation or drooling
- Vomiting
- Diarrhea
- Depression
- Weakness
The severity of these signs can depend on how much of the plant the animal consumed. Any of these symptoms appearing after a pet has been near a eucalyptus plant warrants attention.
What this means for a home with pets
Having eucalyptus in a home with cats or dogs requires careful management to prevent ingestion. Pets, especially curious cats and puppies, may be tempted to chew on leaves or branches, whether they are part of a live plant or in a dried floral display. The strong scent of eucalyptus may attract some animals, adding to the risk.
Because the entire plant contains the toxic oils, no part of it is safe for pets to consume. This includes fallen leaves, which can be just as hazardous as the fresh ones on the plant. Pet owners should be mindful of where they place eucalyptus, as even a small amount ingested could cause the adverse effects listed by the ASPCA.
Keeping pets and eucalyptus plants apart
The safest approach is to keep eucalyptus plants and arrangements out of your home and yard if you have pets. If you choose to have the plant, it must be kept in an area that your pets cannot access under any circumstances. Placing it on a high shelf may not be enough for a determined cat.
Supervision is key. Never leave a pet unattended in a room with a eucalyptus plant. Regularly check the area around the plant for any fallen leaves or stems and discard them immediately in a secure trash bin. When introducing any new plant to your home, it is always a good practice to read its label and check a reliable database to confirm it is safe for your specific pets.
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 cat or dog has chewed on or eaten any part of a eucalyptus plant, contact your veterinarian or the ASPCA Animal Poison Control Center immediately. Be prepared to tell them what part of the plant and how much your pet consumed, as well as the time of ingestion. Do not wait for symptoms to appear before seeking professional advice.
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.