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Species library › Oncidium › Oncidium heteranthum
Orchids Well documented

Oncidium heteranthum

A widespread Andean Oncidium from Venezuela to Bolivia, best known for branched sprays in which most flowers are reduced to small sterile knobs and only a few open fully as yellow and brown blooms. Records centre on montane forest around 1,800 m, so it is an intermediate to cool grower that wants steady moisture and a clear night drop.

Oncidium heteranthum
Photo: Alfred Cogniaux (1841 - 1916), Public domain, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night A clear drop at nightTargets 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

Epiphyte of humid montane and cloud forest, often on branches at forest edges and in secondary growth where light is fairly bright.

Recorded from near sea level to 2,900 m, median about 1,810 m; most records lie between 1,500 and 2,200 m.

EcuadorColombiaPeruBoliviaVenezuelaSurinamenorthern Brazil

🔒 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 Public domain licence, unmodified.