(2 Gallon) WEEPING WILLOW TREE, drooping branches give the tree a distinctive shape. Great for use as a focal point and in areas that are moist. (2 Gallon) WEEPING WILLOW TREE, drooping branches give the tree a distinctive shape. Great for use as a focal point and in areas that are moist. Mature Height: 30-40ft Mature Width: 35ft Hardy in zones 4 through 9, Full sun to partial shade These specimens love water, do not plant weeping willows near sewer or water lines.