Begonia decandra

native begonia

Puerto Rico's native begonia (corazón de poeta), an understory herb of the humid Luquillo Mountains rainforest, especially El Yunque. It has red sap in its crushed veins and white flowers, mostly from April to October. It is strongly shade-loving, and too much light can kill it, so grow it in low light with constant warmth and humidity.

At home, aim for

Day Warm-growingTargets 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

Understory herb on the floor of humid rainforest in northeastern Puerto Rico, mostly in El Yunque National Forest (Río Grande, Naguabo, Fajardo), in low light along forest trails and streams.

Records do not give elevations; El Yunque spans roughly 100 m to 1000 m and most observations are from trails in the lower and middle forest.

Puerto Rico

🔒 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 2.0 licence, unmodified.