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Species library › Begonia › Begonia xanthina
Begonias Little published: much of this is inferred from related species

Begonia xanthina

A rhizomatous begonia from the eastern Himalaya, Assam and south-western Yunnan, close to Begonia rex but with yellow flowers and scattered light-green splashes on its leaves. It grows beside streams on rocky, forested hills, so it wants shade, steady moisture, high humidity and mild rather than hot conditions.

Begonia xanthina
Photo: William Jackson Hooker, Public domain, via Wikimedia Commons
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
No rest periodGrows in the ground

Where it grows wild

Near streams on rocky, forested hillsides, on the ground and on mossy rocks in shade. Records come from forests in Darjeeling (including Neora Valley National Park), Bhutan and West Kameng in Arunachal Pradesh.

Wikipedia gives elevations up to 800 m, but several recorded localities (Neora Valley, Kolakham, Sessa in West Kameng, Mongar in Bhutan) lie at roughly 1,000–2,000 m, so it probably reaches into the lower montane zone.

Eastern HimalayaDarjeeling and SikkimBhutanArunachal PradeshAssamYunnan

🔒 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 Public domain licence, unmodified.