Arisaema cucullatum

A Japanese cobra lily, a hardy woodland tuber that comes up in spring, flowers, and dies back by autumn. It needs a real cold winter dormancy and a cool, shaded, humid summer.

At home, aim for

Day Cool-growingTargets 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

Shaded floor of temperate deciduous or mixed forest in Japan, like most Japanese Arisaema; detail specific to this species is thin.

No wild records with elevation; the climate is modelled from a central Honshu point at about 645 m.

Japan

🔒 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.