Arisaema ehimense

A rare woodland Arisaema from Shikoku, Japan, named for Ehime Prefecture. It is a hardy, summer-growing tuberous perennial that needs a cold winter dormancy.

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

Shady, moist deciduous or mixed montane forest floor, as for other Japanese Arisaema; the species is very locally known.

Few records; the measured site is at about 1090 m in the mountains of Ehime.

JapanShikokuEhime

🔒 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.