Oncidium Harry Zelenko

A compact hybrid of Onc. portmannii × Odm. harryanum, producing short, upright spikes with medium to large, boldly patterned flowers. The broadly spreading sepals and petals display dense leopard-like blotching over a pale ground, while the large, trilobed lip bears a broad, bilobed frontal lobe with a contrasting central mask and a prominent callus.

• Light: Bright indirect light with 40–60% shade cloth; avoid direct sun, which can scorch the narrow foliage.
• Temperature: 55–75°F (13–24°C); an intermediate to cool grower that benefits from a nighttime temperature drop to stimulate blooming.
• Humidity: 65–85%; good air circulation is essential to prevent fungal issues at higher humidity levels.
• 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.