Masdevallia ariasii

Masdevallia ariasii, described by Luer in 1985, is one of the warmer-growing members of the genus: the collections come from about 1,000 m in the foothill forest between Tarapoto and Moyobamba in San Martín, Peru, and near Sucúa in Morona-Santiago, Ecuador. It is an epiphyte of humid lower-montane forest and does well at intermediate to warm temperatures that would stress most Masdevallias, provided humidity stays high and the medium never dries.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

No rest periodGrows on trees (epiphyte)

Where it grows wild

Herbarium labels describe it as epiphytic in forest at 1,000 m on the eastern Andean foothills, where the Amazon lowlands meet the first ridges. This is warm, humid, evergreen forest rather than true cloud forest.

All elevation records read 1,000 m, in both Peru and Ecuador.

PeruSan MartínEcuadorMorona-Santiago

🔒 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.