Sign in Start free
Species library › Blechnum › Blechnum squarrosum
Ferns Partly documented

Blechnum squarrosum

A small Hawaiian endemic fern, long known as Sadleria squarrosa, that grows on wet, shaded banks and rock faces in montane rainforest. It wants steady cool-mild temperatures, constant moisture and shade, with no seasonal rest.

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

Wet, shaded stream banks, road cuts and dripping rock faces in montane rainforest; the wild records come from about 730 to 2,200 m.

Recorded at 730–2195 m, median about 1,190 m.

Hawaii

🔒 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

Grow Blechnum squarrosum? Add it to a free garden and its full profile opens. Pro opens all 38,374 profiles in the library, plants and fungi.

Start free Sign in

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.