Is Tea Tree Toxic to Dogs?

☠️ ToxicSeverity: Moderate

✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit

⚠️ Educational info only. If your pet just chewed something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.

Yes, tea tree is toxic to dogs, with the essential oil being the main danger. Chewing leaves causes stomach upset, but absorbed oil can affect the nervous system.

Also known as: Melaleuca, Australian Tea Tree, Narrow-leaved Paperbark, Melaleuca alternifolia · Melaleuca alternifolia

What makes it toxic

Terpenes, especially terpinen-4-ol, concentrated in the essential oil. They absorb through the skin and gut and can cause neurological signs and liver stress.

Warning signs to watch for

Drooling, vomiting, weakness, wobbliness, tremors and low body temperature, often within 2–12 hours of oil exposure or ingestion.

What to do if your dog eats it

For leaf chewing, remove plant material and call your vet if vomiting continues. For oil on the skin or swallowed, call a vet or pet poison hotline immediately — do not wait for tremors to appear.

Common questions

Can I use diluted tea tree oil on my dog’s hot spots?

No, do not use undiluted or homemade dilutions. Even small amounts absorbed through skin have caused tremors and weakness in dogs, and the dog will lick the area.

How much oil is dangerous for a dog?

There is no established safe dose. Documented poisoning occurred after as little as a few applications of low-concentration products on small dogs, so treat any exposure seriously.

Is the live plant in the garden a big risk?

Leaves are much weaker than the oil. A few chewed leaves usually mean drooling and GI upset only, but large amounts or persistent chewing warrant a vet call.

More plants checked for dogs

Pothos☠️ ToxicYes, pothos is toxic to dogs. Chewing any part of the vine releases calcium oxalate crystals tha Aloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to dogs. The skin and latex layer of the leaf contain co Spider Plant✅ Non-ToxicNo, spider plants are non-toxic to dogs. A dog that nibbles the arching leaves is not at risk of Easter Lily⚠️ Mildly ToxicEaster lilies are only mildly toxic to dogs — they usually cause stomach upset, not the fatal ki Sago Palm☠️ ToxicYes — sago palm is severely toxic to dogs, with a documented fatality rate around 50% when untre Boston Fern✅ Non-ToxicNo, Boston ferns are non-toxic to dogs. Chewing a frond will not poison your dog.

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.