Oncidium ghiesbreghtianum

Better known to growers as Mexicoa ghiesbreghtiana, this is a small Mexican epiphyte with bright yellow and orange flowers from the oak and pine-oak forests of the Pacific slope. It expects a bright position, warm wet summers and a long, dry, cool winter.

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

Epiphyte on oaks and other trees in seasonally dry oak and pine-oak forest.

Recorded at 1,330–2,125 m, median 1,900 m.

Mexico CentralMexico Southwest

🔒 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.