Blechnum marginatum
A Blechnum recorded almost entirely from Réunion, mostly at 1,500 to 2,300 m in cool, humid upland forest and heath. It wants cool, moist, humid conditions year round and does not like heat.
At home, aim for
Day
Cool-growingTargets in Plantistry
Night
Close to the dayTargets in Plantistry
Humidity
Humid airBand in Plantistry
Light
Dappled lightDLI and PPFD in Plantistry
No rest periodGrows in the ground
Where it grows wild
Likely cool, moist upland forest and ericoid heath on volcanic soil, the usual habitat of high-elevation Réunion ferns.
Recorded at 560 to 2,335 m, median about 1,820 m.
RéunionMadagascar
🔒 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.