Also known as Acer palmatum ‘Aoyagi’. Rich-yellow leaves emerge in spring before turning yellow-green over summer and finishing off with a vibrant-yellow in autumn. The beautiful green bark adds colour throughout winter. An upright grower with a spreading canopy. Acer palmatum ‘Ukon’ (Japanese Maple) is a deciduous tree that grows at a moderate rate to reach 3m (H) x 3m (W) in 10 years.