The Quaking Aspen is well known for thriving in cold climates and poor soil. Bright yellow leaves in the fall are stunning against its white bark. Quaking Aspens, native to Colorado. Great for the environment. Aspens have been proven to take in more Carbon Dioxide than other trees, allowing them to release more Oxygen back into our atmosphere. Does well throughout Colorado. Great for screening due to its' suckering habit. Keep away from sidewalks, foundations and septics. Needs well drained soils. Maximum Elevation: 10,000'