Begonia chitoensis

Hardy Taiwan begonia

A mountain begonia from the forests of central and northern Taiwan, named after Chitou (Xitou) in Nantou County. It grows from about 400 to 2200 m and is one of the few begonias hardy outdoors to around USDA zone 7b. It wants cool, very humid, shady conditions and a cool winter rest.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

It grows on moist, shaded forest floors, slopes and banks in the misty montane forest of central Taiwan. It is often seen along trails and in forest recreation areas such as Xitou, Yuantan and Mawu-du.

It grows at 400–2200 m. Many observations are from the Xitou area at around 1100–1300 m.

Taiwan (central and northern mountains)

🔒 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 2.0 licence, unmodified.