A North American native tree boasting a kaleidoscope of color, American hornbeam unfurls striking reddish purple leaves in spring. The leaves turn dark green in summer and then come ablaze with shades of yellow and orange-red in fall. This tree brings interest to the winter landscape, too, by displaying blue-gray bark with a slightly rippled appearance that earned the common name musclewood. At 20–35 feet tall and wide, the American hornbeam tree suits most residential landscapes. It’s also notably pest- and disease-resistant.