Different varieties of Washington hawthorn may grow in U.S. Department of Agriculture plant hardiness zones 3 through 9. The Crategus virdis "Winter King" is suitable only for zones 6 through 9.
Washington hawthorn prefers full sun, but it can tolerate light shade. The tree can grow up to 30 feet tall and 20 feet wide, making it a potential lawn or street tree.
Moist soil that is well-drained works best for Washington hawthorn. However, the tree can tolerate soil ranging from highly alkaline to highly acidic. It can also handle compacted soil, winter salt spray and drought. North Carolina Cooperative Extension says Winter King can tolerate damp soil for short periods of time.
The Missouri Botanical Garden notes you may prune Washington hawthorn to form a hedge. Use caution to prevent injury from its many sharp thorns. The tree can grow up to 2 feet per season and may live 50 to 150 years, according to the Urban Forest Ecosystems Institute.