Oncidium aurarium

A yellow-flowered Andean Oncidium described by Reichenbach in 1884, recorded from Ecuador to Bolivia between about 1,200 and 2,800 m. It is an intermediate grower that wants bright light, a clear day-night drop and a drier winter.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows on trees (epiphyte)

Where it grows wild

Epiphyte of seasonally dry to humid montane forest on the eastern Andean slopes; species-specific habitat notes are scarce, so this follows typical Andean Oncidium.

Recorded at 1,200 to 2,800 m, median about 1,820 m (5 records).

PeruBoliviaEcuador

🔒 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.