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Species library › Begonia › Begonia tomentosa
Begonias Partly documented

Begonia tomentosa

Begonia tomentosa is a hairy, shrubby begonia described in 1827 from southeastern Brazil. It is recorded around Rio de Janeiro, including Atlantic Forest trails at Niterói and rock faces at Pedra de Itaúna, and in Espírito Santo and Santa Catarina. It is also grown in botanic gardens. Its felted leaves handle drier air than most begonias but dislike staying wet.

Begonia tomentosa
Photo: Instituto Nacional da Mata Atlântica - INMA, CC BY-SA 4.0, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
Expects a seasonal restGrows in the ground

Where it grows wild

Atlantic Forest trails and rocky outcrops near the coast, including rock-wall (saxicolous) vegetation on Pedra de Itaúna and restinga near Jacarepaguá.

Few records carry an elevation; one in Santa Catarina is at 660 m, and the Rio sites are near sea level to a few hundred metres.

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-SA 4.0 licence, unmodified.