御林古桑园是华北地区面积最大的古桑林，位于北京市大兴区安定镇前野厂村，相传自东汉年间就有桑树种植，其中树龄最老的达500年以上，明清时期所产的桑葚一度作为贡品出现在皇宫院内。
Located in Anding Town of Daxing District, Yulin Ancient Mulberry Park is the largest ancient mulberry garden in North China. It's known for a variety of ancient mulberry trees and delicious mulberry.