Blechnum sampaioanum
A fern of the Brazilian Atlantic Forest, from Espírito Santo to Santa Catarina, with an outlier in Uruguay. Grow it in humid shade with warm summers and cooler winters, keeping it evenly moist.
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
Inferred from records and the genus: a fern of moist Atlantic Forest understory, banks and streamsides.
Recorded at 60–1,450 m (median 770 m).
Espírito SantoMinas GeraisRio de JaneiroSão PauloParanáSanta CatarinaUruguay
🔒 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
Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.