Vanda Bud Blast: Greenhouse Factors and Solutions

Marita's friend's Vandas produce spikes that dry up. Plants moved to shadier greenhouse side when spiking. Expert: many factors. Cool-growing Vandas (e.g., V. coerulea hybrids) need cooler temps. Greenhouse culture at mid-level. Crowding unlikely cause. Low humidity, stagnant air, temperature swings cause bud drop. Moving plants in bud stage disrupts sensitive environment. Evaporative cooler helps. High light + high heat cancels benefits. High humidity + good air movement beneficial.