Pet safety
Is Tomaselli's Dioon toxic to cats?
Dioon tomasellii
Yes — tomaselli's dioon is toxic to cats according to the ASPCA. Keep it well away from any cat that chews plants; reactions can be significant. This classification follows the ASPCA Toxic and Non-Toxic Plant List. Like all members of Zamiaceae, Dioon tomasellii contains cycasin and BMAA neurotoxin throughout all plant parts. Ingestion causes severe vomiting, acute liver failure, neurological damage, and can be fatal to dogs and cats. Seeds are especially dangerous. ASPCA lists cycads as severely toxic; Dioon carries the same toxin profile as the well-studied sago palm.
What to do if your cat ate tomaselli's dioon
- Remove any plant material from your cat's mouth and move tomaselli's dioon 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 tomaselli's dioon to the appointment so it can be treated correctly.
General guidance, not veterinary advice. If you think your cat has eaten tomaselli's dioon, contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.
Is tomaselli's dioon toxic to cats? — FAQ
Is tomaselli's dioon toxic to cats?
Yes — tomaselli's dioon is toxic to cats according to the ASPCA. Keep it well away from any cat that chews plants; reactions can be significant. Like all members of Zamiaceae, Dioon tomasellii contains cycasin and BMAA neurotoxin throughout all plant parts. Ingestion causes severe vomiting, acute liver failure, neurological damage, and can be fatal to dogs and cats. Seeds are especially dangerous. ASPCA lists cycads as severely toxic; Dioon carries the same toxin profile as the well-studied sago palm.
What are the symptoms if a cat eats tomaselli's dioon?
Like all members of Zamiaceae, Dioon tomasellii contains cycasin and BMAA neurotoxin throughout all plant parts. Ingestion causes severe vomiting, acute liver failure, neurological damage, and can be fatal to dogs and cats. Seeds are especially dangerous. ASPCA lists cycads as severely toxic; Dioon carries the same toxin profile as the well-studied sago palm. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your cat has had access to tomaselli's dioon.
What should I do if my cat ate tomaselli's dioon?
Stay calm. Remove any plant from your cat's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.
Is tomaselli's dioon toxic to dogs too?
The ASPCA classification Growli uses applies to both cats and dogs: Tomaselli's Dioon is toxic to dogs as well. See the full tomaselli's dioon pet-safety guide for both species.
What is a cat-safe alternative to tomaselli's dioon?
For a similar look without the risk, see the best cats-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.
Full tomaselli's dioon pet-safety
- Is tomaselli's dioon toxic to cats and dogs? — the full guide for both pets
- Is tomaselli's dioon toxic to dogs?
- My cat ate tomaselli's dioon — emergency steps
- Best cats-safe plants — the full ASPCA non-toxic list
- Complete tomaselli's dioon care guide