St. John's Wort is a European perennial widely naturalized in North American fields, roadsides, and meadows, with yellow five-petaled flowers dotted with black glands along the margins. It is one of the most researched herbal plants for mild depression. Its seeds are consumed by many songbirds, and its flowers support specialist bees in the genus Macropis.
Best time to see a St. John's Wort
The best time to see a St. John's Wort is June–July, when about 72% of U.S. sightings happen, based on 19,703 research-grade iNaturalist observations.
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