Properties of sea holly

What is a sea holly?

Medicinal properties of sea holly


Common noun: Sea holly, Seaside eryngo

Scientific noun: Eryngium maritimum L.

Family. Carrot family – Umbelliferae

Habitat: On the coastal sand.

Characteristics of Seaside eryngo

Perennial plant of the Carrot family – Umbelliferae– up to 70 cm. Erect stems, greyish green. Lobated leaves, divided in 3 or 5 lobes; lower leaves petiolated; upper ones sessile. Flowers in simple inflorescences, bluish, with bracts longer than them.

Picking-up and storing: Its root should be picked up from summer to autumn. They should dried off and stored in a fresh place.

Active components:


Sea holly properties are similar to those of Field eryngo:

Internal use

  • Depurative: It purifies the blood and combats the inflammations that affect the urinary tracts (kidney stones, painful micturitions, uretritis, chronic prostatitis, etc.) or those of the circulatory apparatus (albuminuria, icterus, etc.) (15 tincture drops three times a day)
  •  Diuretical: It favours the elimination of corporal liquids, by making the kidneys overwork, being very appropriate in cases of gout, rheumatic and heart illnesses that associate with the accumulation of water in the body. (Decoction of 20 gr. of root in ½ liter of water during 10 minutes. Three glasses a day, after each meal)
  • Expectorant: It acts on the mucous of the lungs, favoring expectoration in cases of cold or flu and avoiding the spasms. (The treatment seen before can be suitable to such an end)
  • Diaphoretic: It stimulates the perspiration, reason why it favors diuresis and helps to eliminate toxins of the body. (Decoction of the root)

Toxicity of seaside eryngo

There are not studies that point out any possible toxicity. However, in case of abuse, because of its diuretic and diaphoretic properties, it could produce an unbalance of the blood pressure, by decreasing it too much, being the cause of hypotension.

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This article was endorsed by Vicente Martínez Centelles - Founder of the web and director. Teacher of natural sciences, expert in plants, natural remedies and botanical photography.
Written by Editorial Botanical-online team in charge of content writing

14 April, 2021

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