Acer 'Sun Valley'The Acer rubrum Sun Valley Tree more commonly known as the Scarlett Maple Tree is a medium sized deciduous tree. This variety has dark green lobed leaves before turning to a fiery red in the Autumn. The stems on emerging leaves are often tinged red. The Scarlett Maple Tree has a flame like shape and an ovate crown. This variety is hardy and will thrive in most soil types. The Acer rubrum Sun Valley is best planted in a full sun or partially shaded