Begonia cinnabarina

A tuberous Andean begonia from Bolivia and northwest Argentina with orange-red flowers, one of the wild species behind the garden tuberous begonias. It grows in seasonally dry montane valleys, mostly around 1500–2800 m, where days are warm, nights are cool and the winter is long and dry. Grow it as a summer-growing tuber that rests dry in winter.

At home, aim for

Day IntermediateTargets in Plantistry

Night A clear drop at nightTargets 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

Shaded banks, rock ledges and forest edges in the montane forest and inter-Andean valleys of southern Bolivia. Andean tuberous begonias typically sit in bright shade on slopes that drain fast. The details are generalised from that group.

Records span 210–2850 m, with a median of 2160 m. The very low record is probably a mislabelled locality.

BoliviaArgentina: Northwest

🔒 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 3.0 licence, unmodified.