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Is Cuban Oregano Toxic to Dogs?

☠️ ToxicSeverity: Mild
✅ 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, Cuban oregano is mildly toxic to dogs. Chewing the pungent succulent leaves delivers strong essential oils that inflame the mouth and stomach.

Also known as: Mexican Mint, Spanish Thyme, Indian Borage · Plectranthus amboinicus (Coleus amboinicus)

What makes it toxic

Essential oils rich in carvacrol and thymol in the foliage, which irritate mucous membranes and the digestive tract.

Warning signs to watch for

Drooling, vomiting, diarrhea and mild oral discomfort within hours of ingestion.

What to do if your dog eats it

Remove access, offer water and monitor. Contact your vet if GI signs last more than 24 hours.

Common questions

Can I still grow it as a kitchen herb with a dog around?

Yes, on a high shelf. The risk comes from chewing the leaves, and most dogs are repelled by the strong scent after one sniff.

Is the skin contact risk real for dogs lying near it?

Minor. The oils can mildly irritate hairless skin, but meaningful exposure requires chewing. Bathe the area if you notice redness.

More plants checked for dogs

Pothos☠️ ToxicYes, pothos is toxic to dogs. Chewing any part of the vine releases calcium oxalate crystals thaAloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to dogs. The skin and latex layer of the leaf contain coSpider Plant✅ Non-ToxicNo, spider plants are non-toxic to dogs. A dog that nibbles the arching leaves is not at risk ofEaster Lily⚠️ Mildly ToxicEaster lilies are only mildly toxic to dogs — they usually cause stomach upset, not the fatal kiSago Palm☠️ ToxicYes — sago palm is severely toxic to dogs, with a documented fatality rate around 50% when untreBoston 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.