Pet Care

St. John’s Wort

st. john's wort
Additional Common Names: Klamath Weed
Scientific Name: Hypericum perforatum
Family: Clusiaceae
Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses
Toxic Principles: Hypericin
Clinical Signs: Photosensitization (ulcerative and exudative dermatitis).

If your pet ingested this plant, contact your local veterinarian or the ASPCA Animal Poison Control Center at 888-426-4435.*

* A $65 consultation fee may apply.

Browse Toxic Plant Gallery List »