Tomato plants are toxic; never allow dogs to eat leaves, stems, unripe fruit, or the green calyx. These green parts contain solanine and tomatine alkaloids that affect the nervous system and digestive tract. Symptoms develop within hours of ingestion and can escalate rapidly. Ripe red tomato flesh is safe in small amounts, but the rest of the plant must be avoided entirely. Dogs may be attracted to plants in vegetable gardens, so secure them behind fencing or remove them if you have inquisitive dogs. Even a single leaf or green tomato slice should trigger a call to your vet. Ensure all visitors know not to feed tomato scraps to your dog. This is a common household risk, especially in summer growing season.
Why Tomato Plants Should Be Avoided
Green parts and leaves toxic. Ripe tomato flesh is safe.
What To Do If Your Dog Eats Tomato Plants
Monitor your dog for vomiting, diarrhoea, lethargy, or loss of appetite. If symptoms develop, contact your vet.
Use the Emergency Risk ToolCommon Mistakes
Watch out: Owners assume ripe tomatoes mean the whole plant is safe; only red flesh is non-toxic. Garden access without supervision can result in nibbling green fruit or leaves. Compost heaps containing tomato waste are dangerous. Never feed green tomato slices as scraps. Some owners don't realise that unripe tomatoes from shop-bought fruit are also risky.
Frequently Asked Questions
Are any parts of the tomato plant safe?
Only fully ripe red tomato flesh in tiny amounts. Everything else is toxic.
What symptoms appear if my dog eats green tomato?
Vomiting, diarrhoea, abdominal pain, weakness, tremors, or seizures within hours.
My dog ate one tomato leaf. Is this an emergency?
Call your vet. Monitor closely over the next 6 hours for symptoms. One leaf is lower risk but still warrants caution.
Can puppies tolerate green tomato better?
No. Puppies are equally or more susceptible.
How can I keep my dog safe?
Fence garden areas, remove accessible plants, supervise garden time, cover compost heaps.