Arisaema aequinoctiale

A Japanese cobra lily of forest floors in central Honshu and Shikoku, recorded from about 275 to 1350 m. It is a cool-temperate tuberous plant that needs a cold winter dormancy and shaded, humus-rich soil, and flowers early in spring around the equinox, as its name says.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Hundreds of records from the hills of the Kanto region and Shikoku indicate a herb of moist, shaded deciduous or mixed forest floor, typical for Japanese Arisaema.

Records range from 275 to 1350 m, with a median of about 800 m.

JapanHonshuShikoku

🔒 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.