Common Hackberry (Celtis
occidentalis) is a medium-sized native (to Eastern U.S.) tree that is well
adapted to Colorado soils. It grows to 50 feet with a rounded crown just as wide. The
Hackberry tolerates har, wind, alkaline soil and urban pollution. It is a good replacement tree for the American Elm because of its similar form and
adaptability. Hardy in all zones.
Foliage and Berries. Leaves
are bright green, oval finely toothed and 2 to 5 inches in length. The berries attract
birds as a source of food in the winter.