Pet safety
Is 'San Marzano' Tomatotoxic to cats & dogs?
Solanum lycopersicum 'San Marzano'
Quick verdict — at a glance
- Toxic to cats?
- Yes — toxic
- Toxic to dogs?
- Yes — toxic
- ASPCA classification
- Toxic to pets · botanical name Solanum lycopersicum 'San Marzano'
Is 'san marzano' tomato safe for cats and dogs?
Toxic — the ASPCA lists 'san marzano' tomato as a clear no for cats and dogs. The painful part for the pet is usually quick and intense; the right move is to keep it out of any room a pet roams unsupervised. This classification follows the ASPCA Toxic and Non-Toxic Plant List, the most widely used reference for companion-animal plant safety in the US and the standard most UK vets cite as well. Tomato (Solanum lycopersicum) is listed by the ASPCA as toxic to cats and dogs. The foliage, stems, and green unripe fruit contain solanine and tomatine glycoalkaloids; signs of ingestion include drooling, vomiting, diarrhoea, lethargy, weakness, and dilated pupils. Only the ripe fruit is edible for people.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes | Toxic to pets |
| Dogs | Yes | Toxic to pets |
What happens if a pet eats 'san marzano' tomato?
Tomato (Solanum lycopersicum) is listed by the ASPCA as toxic to cats and dogs. The foliage, stems, and green unripe fruit contain solanine and tomatine glycoalkaloids; signs of ingestion include drooling, vomiting, diarrhoea, lethargy, weakness, and dilated pupils. Only the ripe fruit is edible for people. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to 'san marzano' tomato, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate 'san marzano' tomato
- Remove any plant material from your pet's mouth and move 'san marzano' tomato out of reach.
- Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
- Do not induce vomiting unless a vet or poison-control specialist instructs you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
- Bring a leaf or photo of 'san marzano' tomato to the appointment so it can be treated correctly.
This page is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide rather than the plant. If you are worried, always contact a vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.
Pet-safe alternatives to 'san marzano' tomato
Want the same look without the risk? These plants are listed as non-toxic to cats and dogs by the ASPCA and have similar care needs:
- Cucumber — non-toxic to cats and dogs (care guide)
- Lettuce — non-toxic to cats and dogs (care guide)
- Bean — non-toxic to cats and dogs (care guide)
- Pea — non-toxic to cats and dogs (care guide)
'San Marzano' Tomato and pets — frequently asked questions
Is 'san marzano' tomato toxic to cats?
'San Marzano' Tomato (Solanum lycopersicum 'San Marzano') is toxic to cats according to the ASPCA. Tomato (Solanum lycopersicum) is listed by the ASPCA as toxic to cats and dogs. The foliage, stems, and green unripe fruit contain solanine and tomatine glycoalkaloids; signs of ingestion include drooling, vomiting, diarrhoea, lethargy, weakness, and dilated pupils. Only the ripe fruit is edible for people. Keep it out of reach and contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 if your cat chews it.
Is 'san marzano' tomato toxic to dogs?
Per the ASPCA, 'San Marzano' Tomato (Solanum lycopersicum 'San Marzano') is toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like 'san marzano' tomato is best removed from the floor and low shelves entirely.
What happens if my pet eats 'san marzano' tomato?
Tomato (Solanum lycopersicum) is listed by the ASPCA as toxic to cats and dogs. The foliage, stems, and green unripe fruit contain solanine and tomatine glycoalkaloids; signs of ingestion include drooling, vomiting, diarrhoea, lethargy, weakness, and dilated pupils. Only the ripe fruit is edible for people. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to 'san marzano' tomato, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate 'san marzano' tomato?
Stay calm. Remove any remaining plant material from your pet's mouth and take the plant away so they cannot eat more. Note roughly how much was eaten and when. Do not make your pet vomit unless a vet or poison-control specialist tells you to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice. Bringing a photo or a leaf of 'san marzano' tomato to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to 'san marzano' tomato?
If you want a similar look without the risk, good non-toxic swaps include cucumber, lettuce, bean, pea. All of these are listed as non-toxic to cats and dogs by the ASPCA, so they suit a home where pets have access to your plants.
Full 'san marzano' tomato care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete 'san marzano' tomato care guide, or browse the full pet-safe plant library to check another plant before you buy it.