Is Sago Palm Toxic to Cats?

☠️ ToxicSeverity: Severe

✅ 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 — sago palm is severely toxic to cats and among the deadliest houseplants. Every part contains cycasin, with the seeds holding the highest concentration.

Also known as: Cycad, Coontie Palm, Cardboard Palm, Cycas revoluta · Cycas revoluta

What makes it toxic

Cycasin and related BMAA compounds. Cycasin damages the liver and causes widespread cell death; a single seed can be fatal to a small animal.

Warning signs to watch for

Vomiting (often within 15 minutes to a few hours), drooling, diarrhea, bruising, bleeding, jaundice, seizures and liver failure over the following days.

What to do if your cat eats it

Emergency. Go to a vet immediately — do not wait. Early aggressive treatment (induced vomiting, activated charcoal, IV fluids, liver monitoring) is the only real chance of saving severe cases.

Common questions

Is one sago palm seed really lethal?

It can be. Seeds carry the highest cycasin load, and ingestion of a single seed has killed dogs; a cat’s smaller body mass is even more vulnerable.

Are outdoor sago palms a risk too?

Yes — the plant is equally toxic whether grown indoors or in the yard, and fallen seeds on the ground are commonly eaten by pets.

More plants checked for cats

Pothos☠️ ToxicYes, pothos is toxic to cats. Chewing the leaves or vines releases sharp calcium oxalate crystal Aloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to cats. The gel is famously soothing for human skin, bu Spider Plant✅ Non-ToxicNo, spider plants are non-toxic to cats. They are one of the best houseplants for homes with cur Easter Lily☠️ ToxicYes — and this is one of the most dangerous plants a cat can meet. Every part of an Easter lily,Boston Fern✅ Non-ToxicNo, Boston ferns are non-toxic to cats — a classic choice for plant-loving cat households.African Violet✅ Non-ToxicNo, African violets are non-toxic to cats. They are one of the safest flowering houseplants for

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.