At Yiyuan, all transplanted trees are hooked up to a water source by hoses and leach pipes, and are irrigated top to bottom three times a day, morning, noon, and evening, to keep the water in the trunk's bark from evaporating away. "
怡園裡，只要移植過來的樹，樹上都會接上皮管和橡膠管好接取水源，並分為清晨、中午、黃昏三個時段，由上而下灌溉水分，以保持樹幹表皮水分不被蒸發。」