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Native
to the United States and Europe, St. John's wort is a perennial
plant that grows beside country paths and on sunny edges of woodlands.
It owes its name to the fact that its golden yellow flowers display
their splendour around June 24 - St. John's Day. The medicinal benefits
of the plant stem from a high concentration of hypericin, a red
pigment that exudes from the flowers, and from pseudohypercin. Hypercin
is thought to be responsible for the known antidepressant effect
of St. John's Wort. In addition, the plant has antibiotic and antiviral
capabilities and has long been used to help heal wounds. The herb
is currently being studies as a possible treatment for AIDS patients.
It may also benefit the treatment of the herpes virus and mononucleosis.
Gardening
tips
- Loves sunny,
warm locations, but will grow in partial shade
- Likes well
drained soil, not too moist, with high humus content
- Reaches a
height of 2-3 ft., depending on water and nutrients
Harvest between
June and august, traditionally around June 24, near the time of
the summer solstice.
In ancient times,
the summer solstice was believed to be a magical day. St. John'
Wort was used to ward off fears, ghosts and nightmares; it is therefore
also known as "witches herb".
Characteristic
Its small, bright yellow flowers consist of five petals with long,
feathery stamens at the center. The slender, oval leaves grow in
opposite pairs. If held up to the light, the leaves often appear
to be perforated.
Care
Fertilize St. John's wort with compost in the spring and feed it
with organic fertilizer as necessary (an application in midsummer
may help if the plant is growing in poor soil). St. John's wort
does not thrive in waterlogged soil, but does tolerate dryness well,
making additional irrigation unnecessary. In the fall, cut back
the stems to just above ground level.
Harvesting
and processing
Though you can harvest from June to August, the fresh plant contains
the highest active constituent contents at the end of June. For
tea, gather the upper non-woody parts and hang them in a dark place
with the flower heads down. Use only the flowers to make herb oil.
Uses
The fresh flowers can be used to make an oil that has proved particularly
curative for skin problems, bruises and rheumatic ailments.
Extra
tip : One way to identify St. John's
wort is to pinch the leaves or flowers, which will turn red due
to the release of hypericin. This red pigment was said to represent
the blood of St. John the Baptist.
An
onion planted on St. John's night will grow and grow to a farmer's
delight
Guide to
cultivation
The ornamental and balcony varieties of Hypericum usually do not
contain any healing properties. Only Hypericum perforatum, which
is rarely found commercially, has this capability. For this reason,
look for St. John's Wort in speciality or mail-order nurseries,
or find a clump in the wild and gather just the seeds (a thimbleful
of seeds will suffice). Never dig up native plants because it could
harm the balance of the natural habitat.
Seeding and
planting
- Between
March and May, sow the St. John's wort seeds thinly in a small
box or a seeding tray filled with potting soil.
- Cover the
seeds with a thin layer of soil. Mist them thoroughly with water
and keep them moist. The seeds will germinate in approximately
14-20 days.
- After the
seedlings have reached a height of approximately 1-2 in., transplant
them in clusters of 3 into small pots filled with a growing medium.
Place the potted plants in a sunny location during the summer
and make sure that they receive sufficient water.
- In early
fall, set the plants out in well drained soil, about 12 in apart.
Cover the base of the plants with a light mulch after the first
frost. They will bloom the next summer.
Propagation
The easiest way to propagate St. John's Wort is dividing the plants
in the spring or fall. Dig up your plants and divide the root tufts
into several portions. Replant in well-worked, enriched soil. Collect
some seeds from existing plants in the fall and store them in a
dry, dark place during the winter to sow in March.
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