Begonia maculata

Polka dot begonia

A cane-stemmed begonia endemic to the Atlantic Forest of southeastern Brazil, chiefly Rio de Janeiro and Espírito Santo. It was first described from Corcovado, above Rio de Janeiro. It grows on humus-rich soils in the shaded understory of dense coastal rainforest, and also in restinga scrub. It likes warmth, bright shade and moist but airy roots, and it slows through a mild, drier winter.

Begonia maculata — Photo: Cliff from I now live in Arlington, VA (Outside Washington DC), USA, CC BY 2.0, via Wikimedia Commons

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets 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

It is a terrestrial plant of the understory of dense Atlantic rainforest (Floresta Ombrófila Densa), recorded also from open restinga vegetation near the coast. It has been described as both shade-tolerant and able to take stronger light. Soils are humic, humic-sandy or humic-clayey. The upright bamboo-like canes carry the silver-spotted leaves in tiers above the forest floor.

Wild GBIF records span 7–1066 m, median about 600 m. That fits the coastal ranges and lower slopes around Rio de Janeiro, such as Corcovado, the type locality.

Brazil Southeast

🔒 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 2.0 licence, unmodified.