Loosestrife: a medicinal plant for wetlands

Loosestrife: a medicinal plant for wetlands

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With its large pink stems, loosestrife decorates the area around waterholes. It also contributes to our well-being thanks to its medicinal properties.

Learn about the benefits of loosestrife and discover our growing tips!

Loosestrife: Lythrum salicaria

Loosestrife erects its large purple-pink floral spikes. This perennial plant thrives in humid environments, it is often crossed near water points. It forms a tuft reaching a good meter high. Its lanceolate green leaves are distributed along the stem and have a paler underside than the spot. Above these erect stems furnished with leaves appear terminal spikes. Flowering lasts from June to October, enough to liven up all the beautiful season! Nectariferous and melliferous, it is useful for foraging insects.

The therapeutic virtues of loosestrife

Loosestrife is recommended to fight against diarrhea, even for toddlers. It is also an intestinal antiseptic which has antiviral properties.

This plant is endowed with anti-infectious, antifungal, anti-inflammatory, analgesic and astringent properties.

It is believed to increase the plasma level of insulin, which makes it an anti-diabetic remedy. In external use, it is healing.

How to consume loosestrife?

In decoction:

Against diarrhea, just make a decoction using 10g of dried loosestrife. Stir the plant in 1L of boiling water. Boil for 10 minutes, then leave to infuse while cooling. We recommend that you drink two to three cups a day.

In fluid extract:

This time, dilute 50 drops in a glass of water. Repeat the operation three times a day for a maximum of two days.

In powder :

The powder is used locally on wounds or ulcers which have difficulty in healing.

Cultivate the Lythrum salicaria in the garden


This beautiful plant grows in a humid or even waterlogged substrate. If you have a stream or a pond, don't hesitate to place it nearby. It appreciates a rich soil but dreads an acidic pH. Side exposure, full sun or partial shade both suit it. Planting in pots takes place in spring, take care to respect a distance of 50cm between each plant. Usually, loosestrife is planted in large numbers to form a dense, flowery mat. You just have to place them in staggered rows! Dig a hole slightly larger than the root ball, add compost if your soil is poor, recap and tamp. Finally, water to promote good rooting.

Interview :

For this wetland plant, there is no question of dealing with a dry substrate! If the soil is not naturally soggy, you will need to water regularly, slowing down a bit in winter. Each year in the spring, consider giving it a good supply of compost or a slow-release fertilizer. As they wilt, cut off the flower spikes so that they do not spontaneously reseed.

Multiplication: seedling or division

From the first frost, collect the seeds. Then, soak them in lukewarm water for 48 hours. Once softened, the seeds are placed between layers of damp sand. Within a pot, they are installed in the north in the fall. This is called stratification, which means recreating winter conditions to ensure good germination. The following spring, you can sow your seeds as soon as the temperature exceeds 15 ° C. Another multiplication technique is to divide the clump. It is then sufficient to remove a plant from the earth and divide it in two with a spade. All that remains is to replace the shards in two different places. This operation takes place in the spring.

Video: Making Purple Loosestrife Tincture (August 2022).