Begonia arrogans

Begonia arrogans is a Peruvian begonia described by Irmscher in 1949. It grows in the central Andean foothills of Junín, Pasco and Ucayali at about 550–900 m. Recent collections place it on stream banks in humid forest understory, on moss-covered sandstone and limestone banks, and on roadside banks. It needs a warm, humid setup with bright shade.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

No rest periodGrows in the ground

Where it grows wild

It grows on banks in humid forest understory around streams, on dryish moss-covered sandstone banks in lowland forest, on stone and soil banks in primary forest valleys, and on limestone banks under disturbed forest.

Records span 553–890 m, with a median of 655 m (8 records).

Peru

🔒 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.