Is Dill Toxic to Cats and Dogs?
According to the American Society for the Prevention of Cruelty to Animals (ASPCA), the dill plant, known scientifically as Anethum graveolena, is non-toxic to cats and dogs. This classification means that accidental ingestion of a small part of the plant is not expected to cause a poisoning emergency for a healthy pet.
However, the term non-toxic does not imply that a plant is entirely free of compounds that could cause a reaction. The ASPCA’s database notes that dill contains essential oils. While the plant is safe for pets to be around, prolonged or repeated skin contact with these oils could potentially lead to dermatitis, or skin irritation.
Dill: what the ASPCA database lists
| ASPCA entry | Dill |
|---|---|
| Other common names | None listed |
| Scientific name | Anethum graveolena |
| Family | Apiaceae |
| Toxic to | None listed |
| Non-toxic to | Non-Toxic to Dogs, Non-Toxic to Cats, Non-Toxic to Horses |
| Toxic principles | Essential oils |
| Clinical signs listed | Dermatitis with prolonged contact |
What the ASPCA says about dill
The ASPCA plant database is a primary resource for pet owners checking the safety of household plants. For dill, the entry is straightforward. It is officially listed as non-toxic for dogs, cats, and horses.
Despite this safe classification, the database also points out that dill’s essential oils are a potential irritant. The specific clinical sign mentioned is skin irritation, or dermatitis, from prolonged contact. This suggests that while eating a small amount is unlikely to be harmful, pets that frequently brush against, lie on, or chew on the plant could develop skin issues over time. It is a good reminder that any substance, even a non-toxic one, can cause a reaction in some individuals.
What this means in a home with pets
Having dill in a home or garden with pets is generally considered safe. A cat or dog that chews on a leaf is not expected to get sick from it. Unlike truly toxic plants that can cause severe internal symptoms, dill does not pose a poisoning risk from simple ingestion.
The main consideration is the potential for skin irritation. If you grow dill in an area where your pet spends a lot of time, you might observe them to ensure they are not developing any redness, itchiness, or rashes on their skin. This is more likely to be a concern for pets with known skin sensitivities. Storing harvested dill, especially in concentrated forms like essential oils, securely out of a pet’s reach is a standard safety practice.
General points for any non-toxic plant
Even when a plant is classified as non-toxic, it is wise to follow general pet safety guidelines. A pet’s digestive system is not designed to process large quantities of plant matter. Eating too much of any plant, including dill, could lead to mild gastrointestinal upset like vomiting or diarrhea.
It is always a good idea to supervise pets around plants. Here are a few common-sense tips:
- Introduce any new food, including herbs, to your pet slowly and in very small amounts to see how they react.
- Discourage your pets from treating plants like toys or snacks. Provide appropriate chew toys and enrichment to keep them occupied.
- Every pet is an individual. An animal may have a specific sensitivity or allergy to a substance that does not affect other pets.
When to call your vet
A non-toxic listing means the plant is not expected to poison pets, not that eating it is harmless. Call your vet if your pet shows any of the signs below after chewing on a plant.
If your pet has eaten a large amount of dill or if you notice signs of skin irritation or digestive upset, it is best to contact your veterinarian. For any urgent concerns about potential poisoning, call your vet or the ASPCA Animal Poison Control Center immediately. Have the plant’s name and any packaging available, and try to estimate when and how much your pet consumed.
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
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- 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.