Phalaenopsis Orchid Profile: The Popular Moth Orchid

The Phalaenopsis (moth orchid) dominates garden centers and bridal bouquets thanks to its adaptability to average home conditions and affordable pricing.

Name & Origins

From Greek phalaina (moth) + opsis (looks like). Genus established by C.L. Blume in 1825. Native from N. Australia through India, SE Asia, to the Philippines—epiphytic (on trees) or lithophytic (on rocks), non-parasitic, at sea level to 1,000 ft.

Growth Habit

Monopodial: single stem, unlimited height, no pseudobulbs. Leaves alternate. Closely related to Vanda; hybridizes readily. ~50 species + ~50 man-made hybrid genera.

Blooming & Light

Flowers last up to 3 months. Bright, indirect light (east window ideal; north in dark winters). Artificial: 12–16 hrs/day, 4-tube fluorescent 12" above leaves, 1,000–1,500 foot-candles. Greenhouse: 80% shade. Test: hand 12" above leaves—no shadow.

Foliage Indicators

Yellow-green = good light. Dark green = too little. Narrowing leaves = insufficient light. Never allow direct sun—burns quickly.