Foster recommends at least a 10-foot distance from the underground lines should you plant an oak or an ash. Plant large trees 15 feet away from older, jointed utility lines. Plant large trees at least 20 feet from the side of the house so roots can develop properly. Fall is a good time to plant trees. The roots can become established, giving the tree a head start next year.
Females bear red berries if there's a male holly nearby.
The chalk maple is a beautiful understory tree, reaching a height of about 25 feet and a spread of 15 feet. The black gum, which can have burgundy-red fall color, reaches 60 feet in height and 30 feet in width. The winged elm has yellow fall color, is tolerant of city life and works well in small spaces. So does the Chinese elm. Both have mature heights around 40 feet and spreads of about 30 feet.