Selaginella hieronymiana

A New Guinea spikemoss recorded from lowland to high montane rainforest. Labels describe a pale green understory herb with brown stems, forming patches on the forest floor and sometimes growing on old stumps. For growers it is a humid, shaded terrarium plant, best kept at intermediate temperatures.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

No rest periodGrows in the ground

Where it grows wild

Labels describe montane rainforest with Pandanus, palms and Nothofagus, Castanopsis forest where it grew on a large stump, pre-montane and lowland rainforest, stream courses, and volcanic-ash soils. It forms bright or pale green patches on the forest floor.

Recorded at 15–3500 m, median 1355 m. Plants from the highest sites will need much cooler conditions than the measured average.

New Guinea

🔒 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.