Oncidium dilatatum

A cool-growing Oncidium from the Colombian Central and Eastern Cordilleras, recorded near 1,900 m and possibly much higher. It needs cool, humid, evenly moist conditions year round and does not tolerate prolonged heat.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

No rest periodGrows on trees (epiphyte)

Where it grows wild

Little is published on this species. The records are in Andean montane forest, where Oncidium grow as epiphytes in cool, cloudy, humid conditions.

The sites are estimated at about 1,880 m (Quindío and Risaralda) and 3,790 m (Cundinamarca). The higher figure may be a georeferencing artefact.

Colombia

🔒 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.