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Species library › Blechnum › Blechnum gracile
Ferns Partly documented

Blechnum gracile

A small, widespread Neotropical hard fern with separate sterile and taller fertile fronds, rising from a creeping rhizome. It grows in moist, shaded forest, often on banks and stream sides, from lowlands into the mountains. Treat it as a warm, humid shade fern that never dries out.

At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Humid airBand in Plantistry
Light ShadeDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Terrestrial in moist forest understory, typically on shaded earth banks, stream sides and trail cuts, based on what is known for the genus and its frequent collection from such sites.

Recorded at 0–2,670 m (median 700 m; 540 records), so populations span lowland to montane forest.

MexicoBelizeGuatemalaHondurasEl SalvadorNicaraguaCosta RicaPanamaColombiaVenezuelaTrinidad and TobagoGuianasEcuadorPeruBoliviaBrazil

🔒 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.