Arisaema macrospathum

A tall, tuberous Mexican Arisaema of shaded canyons in oak, pine and cloud forest. It grows during the summer monsoon and dies back for the dry winter and spring, so treat it like a warm-temperate woodland aroid with a dry rest.

At home, aim for

Day IntermediateTargets 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

Mountain mesophytic forest, oak and pine-oak forest, tropical deciduous forest and scrub, preferring shaded canyons; cloud forest in southern Tamaulipas.

Recorded at 189–2708 m, median 1891 m (270 records); the literature gives 600–2300 m.

Mexico CentralMexico GulfMexico NorthwestMexico Southwest

🔒 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.