All plants › Cats › Hawthorn

Is Hawthorn Toxic to Cats?

✅ Non-Toxic
✅ 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.
No, hawthorn is not toxic to cats. Crataegus species are considered non-toxic, and hawthorn extract is even used in veterinary heart supplements.

Also known as: May Tree, Thornapple · Crataegus spp.

What to do if your cat eats it

No first aid needed. Prevent thorn injuries by discouraging climbing into hedges, and call the vet only if vomiting persists after berry snacking.

Common questions

Can a cat eat hawthorn berries?

Yes, they are non-toxic. A few berries are harmless; a large amount might loosen the stool briefly.

Is hawthorn used as a medicine for pets?

Yes, standardized hawthorn extracts are used in cardiology support for dogs and cats, which reflects how benign the plant chemistry is.

More plants checked for cats

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.