![]() The autumn colour is usually yellow, occasionally orange-red. The leaf petiole is 8–20 cm ( 3 + 1⁄ 4– 7 + 3⁄ 4 in) long, and secretes a milky juice when broken. The leaves are opposite, palmately lobed with five lobes, 7–14 cm ( 2 + 3⁄ 4– 5 + 1⁄ 2 in) long and 8–25 cm ( 3 + 1⁄ 4– 9 + 3⁄ 4 in) across the lobes each bear one to three side teeth, and an otherwise smooth margin. The shoots are green at first, soon becoming pale brown. Unlike many other maples, mature trees do not tend to develop a shaggy bark. The bark is grey-brown and shallowly grooved. It is a member of the family Sapindaceae.Īcer platanoides is a deciduous tree, growing to 20–30 m (65–100 ft) tall with a trunk up to 1.5 m (5 ft) in diameter, and a broad, rounded crown. It was introduced to North America in the mid-1700s as a shade tree. & Sint.Īcer platanoides, commonly known as the Norway maple, is a species of maple native to eastern and central Europe and western Asia, from Spain east to Russia, north to southern Scandinavia and southeast to northern Iran. It is also recommended in many cases to avoid the trees listed in the second paragraph if your soil has a high pH or a history of iron chlorosis.įor more information to combat iron chlorosis, download the publication Iron Chlorosis in Trees, from the Kansas State Forest Service. No matter what system is used, this is a tree ailment that must be corrected for long term health of the tree. They work with the gravity flow and pressure internally in the tree. These systems place the solution in the vascular system of the plant for uptake. Equipment used results in much smaller holes being drilled into the tree to reduce injury. These treatments may be the most effective for the long term, often lasting up to five years. Another down side to some home treatments is that the holes are quite large and can result in long term health issues for the tree as the treatments must be applied every few years.Ĭommercial arborists can also do trunk injections. Unless treatment is done in the spring, results may not appear until next year as the iron is absorbed. There are do-it-yourself kits on the market that are applied by drilling holes into the trunk and releasing a cartridge filled with an iron solution into the water transport system.
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