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Species library › Oncidium › Oncidium hastatum
Orchids Well documented

Oncidium hastatum

An epiphytic Oncidium from the Pacific-slope mountains of western and southern Mexico, also recorded in Honduras. Its tall, branching sprays carry greenish-yellow flowers barred with brown and a spear-shaped (hastate) lip. It grows on oaks in pine-oak and cloud forest at about 600 to 2300 m. It wants bright light, cool nights and a distinct dry winter rest.

Oncidium hastatum
Photo: Augusta Innes Withers (del.) - M. Gauci (lith.), Public domain, via Wikimedia Commons
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

Herbarium labels describe it as an epiphyte on oaks in pine-oak forest, in canyon cloud forest (bosque mesófilo) within pine-oak forest, and in humid montane forest on volcanic slopes. It also grows in secondary forest and on shade trees in coffee plantations. One Oaxaca label calls it common.

Collected from about 600 to 2280 m, mostly 1000 to 1900 m. Examples include Sola de Vega in Oaxaca at 1420 to 1935 m, Michoacán near Pátzcuaro and Uruapan at 1740 to 1870 m, and Colima at about 1300 m.

Mexico: JaliscoMexico: ColimaMexico: MichoacánMexico: México StateMexico: GuerreroMexico: OaxacaMexico: ChiapasHonduras

🔒 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.