Acer platanoides (Norway maple): Uses
Horticulture: This species makes a good shade tree in eastern Iowa, although the native sugar maple (A. saccharum) is a much better choice. Because it adapts well to urban conditions, however, the Norway maple is often planted as a street tree in eastern North America. The Norway maple withstands the hot, dry conditions of central and western Iowa better than the cultivated sugar maple (A. saccharum), but not as well as the black maple (A. nigrum). Some landscaping disadvantages to be considered include the shallow root system, which prevents grass from growing under it, and the medium growth rate. These trees may reach a considerable size, but shape and vigor may be maintained by pruning. Cultivars include 'Emerald Queen,' planted near the Farmhouse. This is a rapid grower, reaching a height of 50 feet and a spread of 40 feet, with ascending branches and bright yellow fall foliage. It is recommended as one of the best cultivars for urban planting. Other notable cultivars are 'Crimson King,' with dark reddish-purple leaves throughout the growing season; and 'Schwedlerii,' a faster grower but whose leaves emerge dark reddish-purple, and then turn green.