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Species library › Blechnum › Blechnum rheophyticum
Ferns Partly documented

Blechnum rheophyticum

As its name says, a rheophytic Blechnum of Ecuador and south-west Colombia: it grows on rocks in and beside fast streams, where floods regularly wash over it. Give it shaded, very humid conditions, wet roots and moving air and water.

At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Very humid airBand in Plantistry
Light Dappled lightDLI and PPFD in Plantistry
No rest periodGrows on rock (lithophyte)

Where it grows wild

A rheophyte, anchored to rocks and banks in stream beds within the flood zone, in humid forest. Its narrow fronds resist being swept by spates.

Recorded at 500–2630 m, median 550 m; most records are from about 500–550 m in northern Ecuador.

EcuadorColombia

🔒 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.