Begonia acuminatissima

Begonia acuminatissima is a Philippine begonia described by Merrill in 1912 from Camiguin Island and since collected on Panay and Siargao. Specimens record it on moist limestone rock, on rocks around waterfalls and in soil pockets at the base of shaded cliffs. Grow it warm, humid and shaded on a mineral-rich, free-draining mix; little else is published about it.

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 on rock (lithophyte)

Where it grows wild

Collected on moist limestone rock and soil, on rocks around waterfalls, at roadsides and in soil pockets at the base of cliffs in shaded primary forest on old limestone.

Records run from 5 m on Siargao to 530 m on Camiguin, with Panay collections at 120–200 m.

Philippines

🔒 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.