Common St. Johnswort Weed Killer
Hypericum perforatum Herbicide
Description of St. Johnswort, Common (Hypericum perforatum):
Common St. Johnswort, sometimes spelled "St. John's Wort," is a perennial plant that grows between 1 and 2.5 feet tall. It has hairless, round, and light-green stems with leaves that are around 1 inch long. The upper stems have clusters of several yellow flowers and they have scattered black dots on the margins of the petals.
Common St. Johnswort Optimized Control Options Finder
According to the manufacturer approved labels: The following 2 weed killers, applied at the listed application rates, will control Common St. Johnswort.