Pet emergency
My dog ate Shrubby St. John's Wort — what to do
Step by step
- Take shrubby st. john's wort away and remove any plant material from your dog'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 dog ate shrubby st. john's wort — FAQ
Is shrubby st. john's wort poisonous to dogs?
Yes — the ASPCA lists Shrubby St. John's Wort (Hypericum prolificum) as mildly toxic to dogs. Hypericum species contain hypericin and pseudohypericin, which can cause photosensitisation in livestock, particularly in light-coloured animals. ASPCA does not individually list Hypericum prolificum, but the genus is considered mildly toxic to pets if ingested in quantity; ingestion may cause vomiting, diarrhoea, or lethargy. Keep pets from grazing on foliage.
How serious is it if my dog ate shrubby st. john's wort?
Shrubby St. John's Wort is mildly toxic, so most dogs 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 dog 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. Hypericum species contain hypericin and pseudohypericin, which can cause photosensitisation in livestock, particularly in light-coloured animals. ASPCA does not individually list Hypericum prolificum, but the genus is considered mildly toxic to pets if ingested in quantity; ingestion may cause vomiting, diarrhoea, or lethargy. Keep pets from grazing on foliage. Any worsening or persistent symptoms warrant an immediate vet visit.
Should I make my dog 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 shrubby st. john's wort well out of reach, or swap it for an ASPCA non-toxic plant — see the best dogs-safe plants list.
Related
- Is shrubby st. john's wort toxic to dogs? — full toxicity detail
- Shrubby St. John's Wort and pets — the complete ASPCA pet-safety guide