Arisaema triphyllum

Jack-in-the-pulpit, a hardy woodland aroid of eastern North America that emerges in spring under deciduous trees and dies back by late summer. It needs a real cold winter dormancy and cool, moist, humus-rich soil in shade.

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

Moist deciduous and mixed woods, floodplains, swamp edges and shaded ravines, in leaf-litter soils.

Mostly lowland to mid-elevation; records span 26 to 1085 m, median 275 m.

Eastern United StatesOntarioQuébecManitobaNova ScotiaNew Brunswick

🔒 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 Public domain licence, unmodified.