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Begonias Well documented

Begonia rex

Rex begonia

Begonia rex is a rhizomatous, shade‑adapted understory begonia of subtropical montane and karst forests; in the wild it grows on shaded, moist rock faces, cave entrances and forest floors often with a thin humus/moss layer and high year‑round humidity.

Begonia rex
Photo: W.J. Hooker, Public domain, via Wikimedia Commons
At home, aim for
Day Cool-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

Occurs in shaded, humid microhabitats in subtropical montane/karst terrain: shaded limestone rock walls, cave entrances, streamside banks and forest floor under canopy; typically with a thin humus or moss layer over rock and good ambient moisture but fast surface drainage. Plants are rhizomatous and often lie close to the substrate rather than upright in the canopy.

Recorded from roughly 450–1563 m (median ≈ 1200 m) in the native-country occurrence records you supplied (GBIF/Kew).

NE India (Arunachal Pradesh, Assam, Meghalaya, Mizoram, Nagaland, Tripura)BangladeshMyanmarChina (Guangxi, Guizhou, Yunnan)Vietnam

🔒 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

Grow Begonia rex? Add it to a free garden and its full profile opens. Pro opens all 38,374 profiles in the library, plants and fungi.

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 Public domain licence, unmodified.