Common Name: St John's Wort (St Johns Wort, Rose of Sharon)
Latin Name:Hypericum perforatum and spp.
Family Name: Hypericaceae/Clusiaceae
St. John's Wort is toxic, containing the chemical hypericin, which reacts with light and destroys cells. This shrub should not be confused with Hibiscus syriacus, also called Rose of Sharon, which is safe to feed. Each leaf is covered in tiny transparent dots (which are referred to in the Latin name Hypericum perforatum). If you hold a leaf up to the sky you can see light through the dots in the leaves.