Selaginella oregana

Oregon spikemoss

A spikemoss of the mossy coastal rainforests of the Pacific North-west, from British Columbia to northern California. It hangs in long green streamers from the trunks and branches of bigleaf maple, cottonwood and alder, and also forms mats on the ground and on rocks. It is a cool-temperate plant: it needs cool, very humid air and shade, not tropical terrarium heat.

Selaginella oregana — Photo: Jonathan Hunsberger, CC BY 4.0, via Wikimedia Commons

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

Expects a seasonal restGrows on trees (epiphyte)

Where it grows wild

Shady, mossy coastal forests, mostly as an epiphyte hanging in sheets from the branches of bigleaf maple, black cottonwood and red alder, often among epiphytic mosses. It also creeps over the ground and over rocks as mats. Stems reach about 60 cm and curl up when they dry.

Mainly lowland and foothill coastal forest; no reliable elevation data was available to us.

British ColumbiaWashingtonOregonNorthern California

🔒 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. Photo from Wikimedia Commons, used under its CC BY 4.0 licence, unmodified.