The humidity trays are ideal for growing orchids. Designed as a beautiful, yet functional, piece of Plant Furniture, excess water drains into the tray and may be removed quickly and easily by our unique drainage system (patent application pending. Simply pull the brass knob and extend the reinforced hose to fully drain the tray. No more carrying orchids to the sink to water, or spilling full humidity trays. The Maple Framed Humidity Tray is a time-saver for all orchid growers!