Oncidium macrobulbon

An epiphytic Oncidium of Costa Rica and western Panama, originally described by Kraenzlin and moved into Oncidium by Chase and Williams in 2008. It is well recorded (69 wild records) at 0 to 2,425 m, median 900 m, so it suits warm-intermediate humid growing with a short drier spell early in the year.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

Expects a seasonal restGrows on trees (epiphyte)

Where it grows wild

Epiphyte of wet premontane and montane forest, mostly on the Caribbean and central slopes of Costa Rica.

Recorded from near sea level to 2,425 m, median 900 m.

Costa RicaPanama

🔒 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.