Oncidium maculatum

Oncidium maculatum is an epiphytic orchid of Mexico and northern Central America with yellow-green flowers heavily spotted brown, which gives it its name. It grows on oaks and other trees in seasonally dry oak and deciduous forest, mostly between about 300 and 1,800 m. It wants bright light, a warm wet summer and a cooler, drier winter, and it usually flowers from late autumn to early spring.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets 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

Collectors record it on oak trees, in open, dry forest mixing oak with tropical dry forest, in tropical deciduous forest (bosque tropical caducifolio), and in oak–walnut woodland. These are bright, seasonally dry habitats with a pronounced winter dry season.

GBIF altitudes run from about 125 to 3,000 m. Clusters are in central Veracruz around 1,000–1,500 m and the Huasteca of San Luis Potosí and Hidalgo.

MexicoGuatemalaEl SalvadorHonduras

🔒 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.