An elegant hybrid of Onc. George McMahon × Onc. Avranches, producing compact, upright spikes densely set with medium-sized, clean flowers and numerous buds that open in succession. The broadly spreading, rounded sepals and petals display gently fimbriate, dentate margins without blotching, while the trilobed lip bears a broad, fimbriate frontal lobe and a prominent yellow-orange callus.
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Light: Bright indirect light with 40–60% shade cloth; avoid direct sun, which can scorch the foliage and diminish flower quality.
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Temperature: 55–75°F (13–24°C); an intermediate to cool grower that benefits from a nighttime temperature drop to encourage blooming.
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Humidity: 65–85%; good air circulation is essential to prevent fungal issues at higher humidity levels.
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Watering: Water thoroughly and allow the medium to approach dryness between waterings; never allow roots to sit in standing water.
Additional Notes
Best cultivated in a fine bark or sphagnum moss mix in a well-draining container. Plants are shipped bare root and well established.