A picture of a St. John's Wort

St. John's Wort

Hypericum spp.

Full Sun
Moderate watering
Tender

11b

USDA zone

7°C

Minimum temperature

Expected size

Height
Spread

Max

Min

Flowering

  • 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
Hypericum calycinum Tasmania
Hypericum Hidcote A

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

Cuttings

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.

Division

Seed

Other uses of St. John's Wort

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