Oncidium deltoideum

An Andean Oncidium from Ecuador and Peru, described by Lindley in 1837. The recorded sites are mostly in dry inter-Andean valleys of northern Peru at 1,150-2,250 m, which see warm, bright days, cool nights and a long dry season. It is a bright-light intermediate grower.

At home, aim for

Day IntermediateTargets in Plantistry

Night A clear drop at nightTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Grows on rocks, banks and low shrubs in seasonally dry montane valleys, judging by the record sites; no detailed habitat notes were reachable.

Records sit at 1,152-2,250 m, with one outlier at 194 m in the Amazon lowlands.

EcuadorPeru

🔒 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.