How to plant and cultivate St. John's wort?

How to plant and cultivate St. John's wort?

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Characteristics of St. John's Wort

  • Type: flower and flowering plant
  • Height: up to 1.50m
  • Flower color: yellow
  • Desired exposure: sunny, semi-shaded
  • Type of soil: well drained
  • Sanitizing: no
  • Varieties: Hypericum boreale, Hypericum adpressum, Hypericum buckleyi, Hypericum perforatum, Hypericum reductum

Origins and characteristics of St. John's wort

The St. John's wort belongs to the family of clusiaceae. This plant is easily recognizable by its yellow flowers with five petals. Its leaves have an oval shape and are quite dark green.

The St. John's wort (Hypericum) is made up of 400 species that are found worldwide. Its name comes from the fact that its leaves are pierced with holes.

There are several varieties of St. John's wort, some up to 1.7 m tall, although many gardening enthusiasts prefer the lower varieties that can be planted in pots or in tubs. Most species of St. John's wort are herbaceous plants. It is found in the form of a tapestry or a shrub. The St. John's wort is therefore perfect for covering impracticable embankments, for embellishing the edges of beds or even serving as a ground cover.

St. John's wort is a plant known since Antiquity for its medicinal properties. The wild species, Hypericum perforatum, is cultivated for its medicinal use. It is then found in the form of capsules, extracts, tinctures or even red oil. It is a plant commonly used to treat depressions or to facilitate the healing of small wounds. However, be careful not to use St. John's Wort without seeking the advice of a specialist (pharmacist, doctor, herbalist).

St John's wort plantation

The St. John's wort is hardy, it is planted either at the beginning of autumn, or at the beginning of spring.

It supports dry and limestone soils. It grows in any type of well-drained soil and can be planted in various locations such as flower beds, slopes or even in pots.

Take care that the plant is not in a too shady place so that it can flower properly.

St. John's Wort Care

This robust and rustic plant does not require any particular maintenance. Easy to maintain, it adapts to any type of soil or exposure in your garden.

If you planted your St. John's Wort in the ground, watering should only be done in the event of prolonged dryness. A container culture requires more regular watering, in order to keep the substrate cool.

It is possible to mulch St. John's wort plants with dead leaves, for evergreen varieties, to help them get through the winter. St. John's wort is hardy, it can withstand temperatures reaching -15 ° C.

Flowering takes place from June and continues until October. It is at the beginning of spring that the size of the St. John's wort.

Shrub species need pruning every two years. For perennial species, the leaves should be shaved very close to the ground which will encourage the appearance of new foliage. Attention, the St. John's wort can become invasive. In this case, we can cut it to limit its progress.

St. John's Wort Diseases and Pests

Due to its rustic character, St. John's Wort is very resistant to diseases. In case of high humidity, rust can appear on your plants. Avoid overwatering and weeding regularly.

Properties of St. John's Wort

The St. John's wort perforated (Hypericum perforatum) is renowned for its medicinal properties. It is especially used for the preparation of phytotherapeutic solutions used to treat depressions and mood disorders.

In the Middle Ages, it was already used to treat mild depression, hence its nickname "devil chase". The declination of St. John's wort in essential oil finally helps fight against acne, eczema, bedsores, burns and bites.