Pet safety
Is Centennial Hops toxic to cats?
Humulus lupulus 'Centennial'
Yes — centennial hops 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. Hops (Humulus lupulus) are toxic, particularly to dogs. The ASPCA Animal Poison Control Center reports that ingestion of hop cones, plant material or spent brewing hops can cause malignant hyperthermia — a severe, uncontrolled rise in body temperature. Watch for panting, agitation, vomiting, elevated heart rate, tremors and seizures; this is a veterinary emergency requiring immediate treatment.
What to do if your cat ate centennial hops
- Remove any plant material from your cat's mouth and move centennial hops 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 in the US, or Animal PoisonLine on 01202 509 000 in the UK and follow their advice.
- Bring a leaf or photo of centennial hops to the appointment so it can be treated correctly.
General guidance, not veterinary advice. If you think your cat has eaten centennial hops, contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK — do not wait for symptoms to worsen.
Is centennial hops toxic to cats? — FAQ
Is centennial hops toxic to cats?
Yes — centennial hops is toxic to cats according to the ASPCA. Keep it well away from any cat that chews plants; reactions can be significant. Hops (Humulus lupulus) are toxic, particularly to dogs. The ASPCA Animal Poison Control Center reports that ingestion of hop cones, plant material or spent brewing hops can cause malignant hyperthermia — a severe, uncontrolled rise in body temperature. Watch for panting, agitation, vomiting, elevated heart rate, tremors and seizures; this is a veterinary emergency requiring immediate treatment.
What are the symptoms if a cat eats centennial hops?
Hops (Humulus lupulus) are toxic, particularly to dogs. The ASPCA Animal Poison Control Center reports that ingestion of hop cones, plant material or spent brewing hops can cause malignant hyperthermia — a severe, uncontrolled rise in body temperature. Watch for panting, agitation, vomiting, elevated heart rate, tremors and seizures; this is a veterinary emergency requiring immediate treatment. 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 centennial hops.
What should I do if my cat ate centennial hops?
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 in the US, or Animal PoisonLine on 01202 509 000 in the UK and follow their advice; a leaf or photo helps the vet treat it correctly.
Is centennial hops toxic to dogs too?
The ASPCA classification Growli uses applies to both cats and dogs: Centennial Hops is toxic to dogs as well. See the full centennial hops pet-safety guide for both species.
What is a cat-safe alternative to centennial hops?
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.
Type any plant to see what the ASPCA says about it and your cat.
Full centennial hops pet-safety
- Is humulus lupulus toxic to cats? — the species this cultivar belongs to, checked separately
- Is centennial hops toxic to cats and dogs? — the full guide for both pets
- Is centennial hops toxic to dogs?
- My cat ate centennial hops — emergency steps
- Best cats-safe plants — the full ASPCA non-toxic list
- Complete centennial hops care guide
- Best plant app for pet owners — which apps actually flag ASPCA toxicity before you buy the plant
Writing about plant safety? Embed our free pet-toxicity checker on your site — ASPCA-grounded verdicts for 11,000+ plants, no sign-up.