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A picture of a St. John's Wort

St. John's Wort

Hypericum spp.

Also known as

St John's wort, St Peter's wort

Hypericum calycinum Tasmania by (CC BY-SA 3.0)

Full Sun
Moderate watering


RHS hardiness


Minimum temperature

Expected size





  • spring
  • summer
  • autumn
  • winter

More images of St. John's Wort

A photo of St. John's Wort
A photo of St. John's Wort
A photo of St. John's Wort
A photo of St. John's Wort

St. John's Wort Overview

Hypericum is a large genus containing around 458 species of annuals, herbaceous perennials and evergreen or deciduous shrubs or trees in the Hypericaceae family with a worldwide distribution in a range of zones and habitats. They produce showy yellow flowers with prominent stamens, followed by berry-like seed capsules. Known commonly as St John’s Wort, several species are popular garden plants and there are many cultivars and hybrids available.

Common problems with St. John's Wort

How to propagate St. John's Wort


By softwood cuttings in summer sub-shrubs and shrubs. Seed in autumn, cultivators by softwood cuttings only in summer; perennials may be propagated by seed or division in autumn or spring.



Other uses of St. John's Wort

Grown for their conspicuous, yellow flowers with prominent stamens. This shrub is very attractive to bees.


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