The Vanda denisoniana var. orange is a rare variety of the classic Vanda denisoniana, loved for its warm, orange-yellow blooms and intense fragrance. This species is native to the mountainous regions of Thailand, Laos and Vietnam, where it grows on tree branches in moist forests. The “orange” variety is rarer than the usual yellow-green form, and is prized for its deeper-colored flowers.
This orchid is native to the mountainous region of northern Thailand and surrounding regions. It grows there at high altitudes as an epiphyte on trees, in a climate with lots of haze, diffuse light and relatively cool nights.
Give this Vanda plenty of bright, indirect light. A place with morning sun or filtered sunlight is ideal. Avoid bright midday sun, especially in summer.
This species feels best at temperatures between 18 and 28 C. Cool nights to about 15 C promote flowering.
Vandas grow best in a wooden basket without substrate or with coarse bark. Ensure good air circulation around the roots.
A humidity of 60-80% is ideal. Lower humidity or heat requires more frequent misting and possibly spraying.
Dip the roots in demineralized water in the morning 2-3 times a week, possibly mixed with clean rainwater. Let the roots dry well in between to prevent root rot. In hot periods, this may be done daily. Ensure good air movement (no drafts) around the roots. Do not leave water in the leaf axils.
Give an orchid fertilizer in low concentration (1/4 to 1/2 the recommended dose) weekly, preferably during the growing period.
Flowering is encouraged by alternating warm days and cooler nights, adequate light and a short drier rest period in winter.
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