Is Tomato Plant Toxic to Cats and Dogs? (Lycopersicon spp.)
Tomato Plant, Lycopersicon spp.: listed as toxic to cats and dogs (solanine). Signs, what to do, and how to confirm the species.
At a glance
- Scientific name: Lycopersicon spp.
- Also called:
- Toxic to cats: Yes
- Toxic to dogs: Yes
- Toxic principle: Solanine
- Signs reported: Hypersalivation, inappetence, severe gastrointestinal upset, depression, weakness, dilated pupils, slow heart rate; ripe fruit is non-toxic
Is Tomato Plant toxic to cats and dogs?
ASPCA Animal Poison Control lists Tomato Plant (Lycopersicon spp.) as toxic to cats and dogs. The toxic principle is Solanine. Signs reported: Hypersalivation, inappetence, severe gastrointestinal upset, depression, weakness, dilated pupils, slow heart rate; ripe fruit is non-toxic.
How serious it can be
The original ASPCA text draws a clear distinction: toxicity comes from the green plant parts (stems and leaves) — "ripe fruit is non-toxic."
What to do if your pet ate it
If a pet may have eaten a plant, contact a veterinarian, ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661. Note what was eaten, how much and when, and bring a photo or a piece of the plant. Do not induce vomiting or give home remedies unless a professional tells you to.
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Confirm it is really this plant
Toxicity lists are by species, and many houseplants look alike. Photograph the whole plant, a leaf close-up and any flower in even light; the app reads the species first, then you can check it here. If the species is uncertain, act as if it were toxic.
FAQ
Is Tomato Plant safe for cats?
No. It is listed as toxic to cats; reported signs include hypersalivation.
Is Tomato Plant safe for dogs?
No. It is listed as toxic to dogs.
My pet only chewed a leaf. Should I still call?
Yes. Amount, size of the animal and the part eaten all matter, and the hotlines are staffed to judge that. Calling early is cheaper than waiting for signs.
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Updated 2026-09-11.