Oncidium karwinskii

A showy Mexican Oncidium of the Pacific-slope mountains of Oaxaca, Guerrero and Jalisco, growing at about 1200–2000 m. It needs a bright, warm-days, cool-nights regime with a pronounced dry winter, much like many Mexican pine-oak epiphytes.

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 trees (epiphyte)

Where it grows wild

An epiphyte of seasonally dry oak and pine-oak forest and humid ravines on the Pacific slope, where it grows on branches in fairly bright, broken light.

Recorded at 1200–1966 m, with a median of 1532 m.

OaxacaGuerreroJaliscoDurangoMexico

🔒 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-SA 3.0 licence, unmodified.