I agree, you wouldn't want the water to drip for hours on the orchid(s). As in nature, orchids need the moisture and then need to dry. The reason I asked about a tree canopy is because large trees will produce copious amounts of moisture, a process called transpiration. The hotter the day the more water vapor is produced by those leaves. But in severe droughts, that transpiration will be greatly reduced. The roots have to take in the water for the leaves to transpire. On hot days here in Mississippi, the temperature might be 95 F, but under my oak trees, the temperature will be at least 10 degrees cooler. When standing under my oaks, I can actually feel the water vapor on my face during the heat of the day.
