Begonia grisea

A robust, semi-succulent begonia of north-eastern Brazil, abundant in the Chapada Diamantina of Bahia and also found in Minas Gerais, Pernambuco and Alagoas. It grows among and on rocks, often on vertical walls, as an erect herb or subshrub 0.5–2 m tall with thick leaves that are grey or reddish beneath, red stems and inflorescence stalks, and white to pale pink flowers. Grow it bright, warm and well drained, with a drier winter.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Rock outcrops, cliffs and boulder slopes in campo rupestre, caatinga and submontane Atlantic forest, sometimes by rivers; labels describe it as rupicolous, between rocks and on vertical rock walls.

Herbarium elevations run from about 320 to 1,800 m, median about 930 m.

Brazil NortheastBrazil 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.