Natural Remedies - Healing with Medicinal Herbs
Purple loosestrife (Lythrum salicaria Lythraceae)
Other Names: Spiked Loosestrife, Purple Lythrum
Purple loosestrife, a striking perennial, thrives in moist, marshy soils, reaching up to 1.5 meters. Its fragrance-free purple-pink flowers bloom atop stems, making it a popular ornamental plant. It resembles willowherb (Epilobium) and is often mistaken for it.
Parts for Use
Aboveground Parts
- Flower stalks are harvested in full bloom, hung upside down to dry in an airy space.
- Dried stems are crushed or ground into powder for decoctions or liquid extracts.
Ingredients
Rich in polyphenols, including flavonoids that enhance circulation, anthocyanins that support blood vessel health, and tannins with astringent properties that combat infections and diarrhea.
Use in Treatment
Purple loosestrife is a traditional remedy for diarrhea, particularly in children, due to its tannin content, with proven efficacy against viral diarrhea. Its antiviral properties, noted in 2000 Finnish studies, also combat Candida albicans, which causes oral mucosa inflammation. A 1986 study showed it lowers blood sugar, aiding diabetes management. Polyphenols make it effective for circulatory issues, especially hemorrhoids, and it is used for excessive menstruation, intermenstrual bleeding, vaginal discharge, and irritation. Externally, it treats injuries, ulcers, inflamed eyes, and eczema.
Cultivation
Grow in wet or moist soil in sunny or slightly shaded areas. Sow seeds in spring at 13–18°C.
Preparation and Dosage
For Internal Use (Minor Diarrhea)
- Decoction: Boil 10 g dried herb in 1 liter water for 10 minutes, strain, and drink 2–3 cups daily.
For Internal Use (Sparse Stools in Children, Minor Diarrhea in Adults, Circulatory Issues)
- Liquid Extract: Children: 10–15 drops in water; Adults: 1 tsp in water 3 times daily, for up to 2 days.
For External Use (Injuries, Eczema)
- Tincture/Wound Rinse: Follow manufacturer’s instructions.
Warnings
- Consult a healthcare professional before use.
- No harmful side effects have been reported.





