I am so excited to be writing about St. Johnswort today. It was this amazing plant healer that started me on the path to becoming a herbalist. As someone who has battled depression for most of my adult life, it’s no surprise that this herb would be in my healing arsenal. So let’s learn a little bit about Hypericum!

 

Family: Hypericaceae

Latin name: Hypericum perforatum

Common names: St. Johns wort

Parts Used: top 20-25% of the plant (aerial parts)


Constituents: volatile oil (caryophyllene, methyl-2-octane, n-nonane, n-octanal, n-decanal, α- and β-pinene); naphthodianthones (hypericin, pseudohypericin); phloroglucinols (hyperforin); catechins; proanthocyanidins; flavonoids (hyperoside, rutin) 1

Description:

Although native to Asia and Europe, Hypericum can now be found worldwide. The name St. Johns wort stems from the tradition of harvesting the herb on St. John’s day which is the 24th of June. Hypericum is a herbaceous perennial plant that has a rhizomatous root structure. The stems are erect and branch off at the upper sections. St. John’s wort can grow up to 1 metre in height. The leaves are green and have scatter translucent dots that can be seen when held up to the lights (these dots are glandular tissue). These dots look like perforations hence the Latin name “perforatum”. The flowers have give petals that are yellow in colour with a few scattered black dots. The flowers form a structure known as a cyme and they appear during late spring or early summer (closer to early summer in southern Ontario). Hypericum’s flowers have many stamens which form three bundles at the base. If you crush the flower buds, a red/purple liquid is produced.

 

Therapeutic Properties:

Analgesic, antibacterial, anticatarrhal, anticonvulsant, antidepressant, anti-inflammatory (local, neural, systemic), antineurotoxic, antioxidant, antispasmodic, antiulcerogenic, antiviral, anxiolytic, astringent, cardiac, diaphoretic, diuretic, febrifuge, hemostatic (antihemorrhagic, styptic), nervine, relaxant, sedative, tranquilizer, vascular tonic, vulnerary

 

St Johnswort 2

 

Medicinal Uses:

Epithelial:

  • topical application for surface injuries (cuts, bites, scrapes, stings etc) and deeper tissue injuries (bruises, sprains, strains etc)
  • a specific for any injury in which there is nerve damage
  • internal use for inflammatory conditions of the GI tract

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Nervous System: 

  • depression, anxiety, insomnia, muscle tension, tension headaches
  • dementias, poor concentration/memory, mental fatigue
  • pain and diseases of the nervous system
    • neuralgia, rheumatic and arthritic pains, coccygeal pains

Cardiovascular System: 

  • vascular conditions (hemorrhoids, varicose veins, arteriosclerosis), heart conditions

 

Infections:

  • very good antibacterial (best applied locally – mouth, throat, GI tract, skin)
  • very good antiviral (herpes, cold sores etc)
    • Note: for cold sores it should be taken internally as well because the virus is systemic
  • colds/flu
    • reduces fever, upper respiratory anticatarrhal (excess mucus), immune stimulant and antiviral

 

St Johnswort 3

 

Contraindications:

Due to photosensitizing properties be cautious with regards to sun exposure. It is best to avoid direct sun exposure (without adequate protection) with long term use. It is not recommended in combination with other moderate to strong astringent herbs. It should be used with caution (and under the supervision of a qualified practitioner) if pregnant or breastfeeding. Due to the possibility of increased liver metabolism, Hypericum should only be administered by a qualified herbalist if you are on any of the following medications: oral contraceptives, HIV protease inhibitors, cardioactive glycosides, anticoagulant or antithrombotic.  Due to it’s anxioylitic and antidepressant properties it should be used with caution (preferably under the supervision of a qualified herbalist) if you are on anti-convulsant, sedative or mood-altering medications.

 

P.S. Please pin and share the Hypericum love!

 

St. Johnswort Herb - Hypericum perforatum

 

References:

Class Notes – Living Earth School of Herbalism

Earthwise Herbal, The – Matthew Wood

Holistic Herbal – David Hoffman

Medical Herbalism – David Hoffman (1)

Modern Herbal, A – Mrs. M. Grieve

Way of Herbs, The – Michael Tierra