Desirable Large-Size Trees Zone 3 trees should be planted a distance of at least 35 feet from overhead power lines and structures. This is an interspecific hybrid between silver and red maples. It takes advantage of some of the assets of each of its parents.
Freeman maples are more urban-tolerant and more tolerant of alkaline soils than red maple.
Armstrong' is upright for about 20 years, then returns to a normal habit of growth. Red maple is similar in many respects but is less urban tolerant with a 20-25 year service life. Service life exceeds 30 years. The leaf is an unusual fan shape with yellow fall color. This plant has a high degree of insect and disease resistance and is quite tolerant of dust and dirt in urban areas.