Sun Valley Red Maple Acer rubrum ‘Sun Valley’ Category: Deciduous Growth Rate: Average Adaptability: Full sun to partial shade Shape: Symmetrical Ovate Size: 20 - 35’ tall, 15-25’ wide Fall Color: Red Wildlife Value: Provides places to raise young. Description: Sun Valley is a U.S. National Arboretum introduction. It is a male selection that is noted for having a symmetrical ovate crown and exceptional red fall color. Plant as a specimen tree for the lawn or street. TreesCharlotte.org