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Species library › Arisaema › Arisaema japonicum
Aroids Well documented

Arisaema japonicum

A cobra lily of Japan and Korea from the variable Arisaema serratum group, growing from a tuber on moist forest floors and fully winter-dormant. It is a hardy woodland plant for a shaded garden bed or a cool pot, not a tropical aroid.

Arisaema japonicum
Photo: Qwert1234, CC BY-SA 4.0, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light ShadeDLI and PPFD in Plantistry
Expects a seasonal restGrows in the ground

Where it grows wild

Deciduous and mixed forest floors, forest edges and moist slopes, in shade under trees.

Recorded from sea level to 2,000 m, median 700 m.

JapanSouth KoreaNorth Korea

🔒 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-SA 4.0 licence, unmodified.