Pteris lydgatei

A rare brake fern endemic to the Hawaiian Islands, known from a handful of wet montane forest sites and federally listed as endangered. Grow it like other Hawaiian wet-forest ferns: shaded, constantly humid, mild and 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

Shaded streambanks and steep wet slopes in montane rain forest on the older Hawaiian islands, often in deep humus among other ferns.

Reported from mid-elevation wet forest, roughly 600–1200 m; no measured elevations were available.

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

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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.