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

Blechnum underwoodianum

A Greater Antillean montane fern recorded mainly in Jamaica's Blue Mountains and the Dominican Republic's Cordillera Central around 1,700–1,900 m. Give it cool cloud-forest conditions: mild days, cool nights, shade and constant moisture.

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 periodGrows in the ground

Where it grows wild

Montane forest fern; most records come from cloud-forest elevations, and the habitat is inferred from those sites and related Blechnum.

Recorded 200–1,905 m, median about 1,680 m; the low records are doubtful.

JamaicaDominican RepublicPuerto RicoCosta Rica

🔒 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.