Striking burgundy tassels adorn the bare branches before the new spring growth appears. Young shoots and leaves are purple-maroon. Green summer leaves turn gold in autumn. A vigorous, round, and irregular grower that has smooth bark with a white bloom. Acer negundo ‘Violaceum’ (Violet Twig Box Elder) is a deciduous tree that grows at a fast rate to reach 6m (H) x 5m (W) in 10 years.