Begonia chlorosticta

A shrubby, cane-like Bornean begonia of section Petermannia from the Hose Mountains in central Sarawak. Its dark leaves are covered in pale green spots. It grows on rocky slopes and wet cliffs in lowland dipterocarp forest at about 450 m, where it is warm, very wet and saturated with humidity all year. It is regarded as a plant for experienced growers and does best in an enclosure with constant warmth, very high humidity and low light.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

No rest periodGrows on rock (lithophyte)

Where it grows wild

On rocky slopes and wet cliffs in lowland mixed dipterocarp forest. This is a deeply shaded, constantly damp microhabitat with seepage over rock. After the 1967 type collection it went unrecorded in the wild until it was found again in the same mountains in 2017.

Type collected at about 450 m in the Hose Mountains.

Malaysia: Sarawak (Hose 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.