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Species library › Blechnum › Blechnum gemmascens
Ferns Little published: much of this is inferred from related species

Blechnum gemmascens

A Colombian Andean fern described by Alston, now usually treated as Parablechnum gemmascens. It is known from just a couple of herbarium collections in Cundinamarca and Boyacá, including the Sumapaz area. It is a cool-growing high-mountain fern that wants cold nights, constant moisture and humid air.

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
No rest periodGrows in the ground

Where it grows wild

Specimens come from the Eastern Cordillera of Colombia, around Sumapaz and in Boyacá. Related Parablechnum grow in upper montane forest, at forest edges and in páramo margins. This profile assumes that type of habitat.

Not recorded on the specimens. The Sumapaz locality suggests high elevation, probably around 2,800 to 3,500 m.

ColombiaCundinamarcaBoyacá

🔒 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.