‘Green Vase’ Japanese zelkova is a good street and shade tree with vase-shaped form with a rounded crown. Green leaves turn yellow, in fall. Peeling bark on older trees exposes orange patches with ornamental appeal. Drought tolerant and unaffected by air pollution, this tree is a nice option for a variety of urban uses and grows to a height of 50–80’ and spread of around 50–75’ at a medium rate, with height increases of 13–24” per year.