Crispa Babylon Weeping Willow Salix babylonica 'Crispa' Description Green curled foliage turns yellow in Autumn.Growth Habit: Upright and arching branchesMature Height: 20' to 30' (6m to 9m)Mature Spread: 10' to 20' (3m to 6m)Growth Rate: Fast More Details Sun Exposure: Full sun to partial shadeCold Hardiness Zone: 4Tolerate wet soils