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Species library › Oncidium › Oncidium andersonianum
Orchids Partly documented

Oncidium andersonianum

Oncidium ×andersonianum is a natural hybrid, described by Reichenbach as Odontoglossum ×andersonianum, between cool-growing odontoglossums of the Colombian Andes, usually given as O. crispum and a related species. It needs cool, humid, bright odontoglossum conditions. The single record from hot lowland Venezuela is almost certainly misleading.

Oncidium andersonianum
Photo: John Nugent Fitch, Public domain, via Wikimedia Commons
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

A natural hybrid arising where its odontoglossum parents grow together as epiphytes in cool, misty Andean cloud forest.

Its parents grow at about 2000 to 3000 m; the lone record at about 500 m does not fit a cool-growing odontoglossum.

ColombiaVenezuela

🔒 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.