| It's difficult to answer your question without knowing more about your geographical location and growing situation. Vandas like many orchids can rot if kept too wet or worse yet kept wet while too cool. If you're spraying in the morning and they have tine to dry off during the day (if oyu have good air circulation) You're probably ok. It's tough to say for sure without knowing your geographical region, your temps, humidity level, air circulation, etc.
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