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Species library › Blechnum › Blechnum auratum
Ferns Partly documented

Blechnum auratum

A small tree fern (now often placed in Lomariocycas) with a trunk up to about 2 m and once-pinnate fronds, from Costa Rica to Bolivia. Most records sit at 3000–3500 m, so it needs constantly cool, very humid conditions and is a challenge in warm climates.

At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Humid airBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Montane rainforest and cloud forest, with most records high up near the treeline and in subpáramo.

Recorded 584–4260 m, median about 3370 m (705 records).

Costa RicaPanamaColombiaVenezuelaEcuadorPeruBolivia

🔒 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.