Matted St. John’s Wort (Hypericum japonicum)

Annual/Perennial
H. calycatum. H. pusillum.
Common Name Latin Name Plant Family
Matted St. John's Wort
Hypericum japonicum
Hypericaceae

None known

  • Medicinal Use

    The plant is alterative, antiphlogistic, astringent, depurative, febrifuge and vulnerary[147, 218, 240]. It is decocted with water for use[218]. It is used in the treatment of asthma and dysentery, acute hepatitis, pain in the liver region, appendicitis, boils and abscesses and has also been used as a styptic[147, 240, 272]. The plant has also shown antitumour activity[218].

  • Edible Use

    None known

  • Cautionary Notes

    The plant is suspected of causing photo-sensitization[240]. Feeding trials to livestock in New Zealand have shown that it is non-toxic[240].

Cultivation & Habitat

Seed – sow spring in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in late spring. It might also be worthwhile trying an outdoor sowing in April.
Easily grown in any reasonably good well-drained but moisture retentive soil[1]. Succeeds in sun or semi-shade but flowers better in a sunny position. This species is found in the wild in wet soils. A very variable species[266].
E. Asia – China, Japan to Australia and New Zealand.

Become ungovernable, break the chains of the matrix; grow and forage your own food and medicine.

*None of the information on this website qualifies as professional medical advice. Take only what resonates with your heart and use your own personal responsibility for what’s best for you. For more information [brackets] [000], see bibliography.