Pet emergency
My cat ate Golden St. John's Wort — what to do
Step by step
- Take golden st. john's wort away and remove any plant material from your cat's mouth so they cannot eat more.
- Note roughly how much was eaten and when — this helps the vet judge the risk.
- Do NOT induce vomiting unless a vet or poison-control specialist tells you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice.
- Watch for drooling, pawing at the mouth, vomiting, loss of appetite, or lethargy, and bring a leaf or photo to the appointment.
This is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide as well as the plant. When in doubt, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435.
My cat ate golden st. john's wort — FAQ
Is golden st. john's wort poisonous to cats?
Yes — the ASPCA lists Golden St. John's Wort (Hypericum frondosum) as mildly toxic to cats. Like other Hypericum species, H. frondosum contains hypericin, which can cause photosensitisation and mild GI upset in pets if consumed. ASPCA does not individually list this species, but the Hypericum genus is not considered safe for pets and livestock. Contact a vet if significant ingestion occurs.
How serious is it if my cat ate golden st. john's wort?
Golden St. John's Wort is mildly toxic, so most cats get short-lived mouth irritation, drooling, and vomiting rather than a life-threatening reaction. It is still worth a vet call to be safe, especially if your cat ate a lot or symptoms persist.
What symptoms should I watch for?
Signs usually appear soon after chewing: drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy. Like other Hypericum species, H. frondosum contains hypericin, which can cause photosensitisation and mild GI upset in pets if consumed. ASPCA does not individually list this species, but the Hypericum genus is not considered safe for pets and livestock. Contact a vet if significant ingestion occurs. Any worsening or persistent symptoms warrant an immediate vet visit.
Should I make my cat vomit?
No — do not induce vomiting unless a vet or the ASPCA Animal Poison Control Center specifically tells you to. The wrong action can make things worse. Call (888) 426-4435 and follow professional advice.
How do I stop this happening again?
Keep golden st. john's wort well out of reach, or swap it for an ASPCA non-toxic plant — see the best cats-safe plants list.
Related
- Is golden st. john's wort toxic to cats? — full toxicity detail
- Golden St. John's Wort and pets — the complete ASPCA pet-safety guide