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Hypericum spp. St. John's Wort

Edward F. Gilman, Ryan W. Klein, and Gail Hansen

Release Date: 2/11/2024

DOI: 10.32473/edis-fp261-1999

Agriculture

Abstract

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.

About this Publication

This document is FPS-261, one of a series of the Department of Environmental Horticulture, UF/IFAS Extension. Original publication date October 1999. Revised October 2023. Visit the EDIS website at https://edis.ifas.ufl.edu for the currently supported version of this publication.

About the Authors

Edward F. Gilman, professor emeritus; Ryan W. Klein, assistant professor, arboriculture; and Gail Hansen, professor, sustainable landscape design; Department of Environmental Horticulture, UF/IFAS Extension, Gainesville, FL 32611.