Hypericum spp. St. John's Wort
Edward F. Gilman, Ryan W. Klein, and Gail Hansen
This document provides an overview of Hypericum spp., commonly known as St. John’s wort. It describes the plant’s characteristics, including its yellow flowers, dark green foliage, and moderate growth rate. The plant is suitable for use as ground cover in USDA hardiness zones 5B through 10A and can be planted year-round in zones 7 to 11. It is native to Florida, not known to be invasive, and has various uses such as foundation planting, border, mass planting, and edging. The document also details the plant’s soil and light requirements, drought tolerance, and pest resistance. Original publication date October 1999.