Blechnum fragile

A widespread neotropical fern of wet montane forest from southern Mexico and the Caribbean to Bolivia, often placed in Lomaridium. Grow it shaded, cool-intermediate and humid, with its creeping rhizome given something to climb or spread along.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

No rest periodClimber

Where it grows wild

Specific habitat notes were not found; species in this group grow in wet premontane and montane forest, with rhizomes creeping over the ground, banks and up tree bases.

Recorded at 225–5,100 m, median about 1,600 m; the upper figure is surely an error, and most records lie at 1,000–2,200 m.

MexicoGuatemalaBelizeEl SalvadorHondurasNicaraguaCosta RicaPanamaCubaJamaicaHispaniolaPuerto RicoTrinidadColombiaVenezuelaEcuador

🔒 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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More Blechnum

Blechnum appendiculatum Blechnum sociale Blechnum montanum Blechnum occidentale Blechnum arcuatum Blechnum acanthopodum Blechnum acutum Blechnum aequabile Blechnum aequatoriense Blechnum aggregatum Blechnum amabile Blechnum ambiguum All 259 →

Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.