Species library › Arisaema › Arisaema stewardsonii
Aroids Well documented

Arisaema stewardsonii

The swamp jack-in-the-pulpit of the north-eastern United States and south-eastern Canada, told apart from its relatives by a strongly fluted spathe tube. It lives with its tuber in permanently wet ground in bogs, swamps and wet deciduous woods, and needs a true 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 Dappled lightDLI and PPFD in Plantistry
Expects a seasonal restGrows in the ground

Where it grows wild

Hydric deciduous woodland, bogs, swamps and other wetlands, usually in shade beneath trees and often in sphagnum or muck.

Records span 30–2150 m, mostly low (median about 180 m).

QuébecNew BrunswickNova ScotiaMaineNew EnglandNew YorkPennsylvaniaNew JerseyMarylandVirginiaWest VirginiaNorth CarolinaTennesseeKentuckyOhioIndiana

🔒 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.