Herb Passport · Lesvos Herbs

Ceterach Tea

Asplenium ceterach

Origin

🇬🇷 Lesvos Island, Greece

Aegean Sea · 39°N 26°E

Shaded rock faces, northern Lesvos

Harvest

Wild-harvested by hand, seasonal cycles

Wild collection

Grows wild on untreated land; collected by hand

Botanical Profile

Ingredients Asplenium Ceterach

Traditional use

Known as “stone tea”. Traditionally used for the kidneys and urinary tract: kidney stones, cystitis and urinary infections. Diuretic, and used to aid digestion, ease coughs and bronchitis, and as an anti-inflammatory.

Asplenium Ceterach

Shaded rock faces, northern Lesvos

Mild

A rare rock fern from the shaded faces of northern Lesvos, gathered by hand in small amounts. Mild, neutral and faintly earthy.

After a mealAromatic & bracing

Herb profile

Traditional Use No EU HMPC

Posology reference

2–4 g dried fronds/day as tea

Max duration: 2–4 weeks

Traditional diuretic and expectorant; no EMA HMPC monograph; caution with prolonged high-dose use

Safety notes

No documented toxicity at therapeutic doses. Traditional diuretic and expectorant use. Fern family — avoid prolonged very high-dose use.

Please consult your doctor about the use of any herb.

Pairs well with

Thyme, Equisetum

Harvesting Ethics

We never harvest more than 50% of any wild population per season, rotate collection areas annually, and monitor active compound concentrations per batch. When stress indicators appear, we pause harvesting for the full season.

Our full sustainability commitment →

Herb profiles reference EMA HMPC assessments where available — not product indications. Please consult your doctor about the use of any herb.

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