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Species library › Huperzia › Huperzia selago
Ferns Well documented

Huperzia selago

The fir clubmoss, a small tufted lycophyte of cool, wet heaths, rocky mountain slopes and boreal forest across the northern hemisphere. It is slow and difficult in cultivation, needing cold winters, cool humid summers and an acidic, undisturbed root run.

Huperzia selago
Photo: User:Tigerente, CC BY-SA 3.0, via Wikimedia Commons
At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Humid airBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
Expects a seasonal restGrows in the ground

Where it grows wild

Acidic heath, rocky alpine grassland, scree and mossy boreal or montane forest floors, often among dwarf shrubs.

From sea level in the Arctic and Atlantic north to about 3,500 m in the Alps, median records near 1,250 m.

EuropeNorthern AsiaJapanCanadaNorthern United StatesGreenlandIcelandSvalbard

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates
✓ Humidity band, and how to hold it
✓ Light as DLI and PPFD for a grow light
✓ Wet and dry seasons, and whether to rest it
✓ Substrate and airflow
✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.