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Descriptions of <br /> RECOMMENDED TREE SPECIES <br /> for Plantings in the Public Right -of -Way <br /> City of Eugene <br /> The following list includes species which are known to grow well in Eugene and <br /> which are generally available in Willamette Valley nurseries. Other trees are <br /> available, so ask if you have a specific tree in mind. We will discourage <br /> trees that have been over planted or have proven to be a nuisance. <br /> Trees in urban areas act as giant air - conditioners, cooling and cleaning city <br /> air. The bigger the tree, the more benefits our community derives from it. <br /> Residents are therefore encouraged to plant species in the right -of -way which <br /> will eventually provide the largest canopy possible (both in width and in <br /> height) on a given site. On most sites, the planting of trees with smaller <br /> canopies (i.e., columnar trees and many of the ornamental cherries, flowering <br /> plums, and dogwoods) are not encouraged, as their role in improving our urban <br /> environment is quite limited. <br /> The major attributes of each species are listed below, with at least one <br /> Eugene address where one can see an example of that species growing in the <br /> public right -of -way. <br /> (Note: Additional species will be added to this list as time permits. For <br /> the time being, the list consists primarily of trees recommended for the clay <br /> neighborhoods.) <br /> L A R G E - C A N O P Y BROADLEAF TREES ( >50 feet in 50 years) <br /> BIGLEAF MAPLE (Acer macrophyllum), crown spread - 40'+ <br /> A native of the Northwest, this maple's ascending main branches and <br /> broadly domed crown make it an exceptional street tree where there is <br /> adequate room for its development. It grows best on the deep, well - <br /> drained soils nearest the Willamette River, but it grows satisfactorily <br /> on hillier sites with shallower soils, too, if treelawns are at least <br /> ten feet wide and if irrigation is provided during the summer. Long, <br /> pendulous clusters of yellow -green flowers in early April are followed <br /> by a dense canopy of large leaves which turn yellow in late October. <br /> (186 E 14th, a 15 -yr -old tree; NW corner of Broadway and Washington, one <br /> of the grandest of them all) <br /> NORWAY MAPLE (Acer platanoides), crown spread - 40'+ <br /> Native to western Europe, this maple does very well in the Willamette <br /> Valley, provided it is planted on well- drained soils. Showy clusters of <br /> yellow -green flowers precede the appearance of its leaves in early <br /> April. In fall, the leaves generally turn a clear yellow before <br /> dropping. (south side of W 10th Ave, btw Charnelton and Lincoln; 15- <br /> yr -old trees) <br /> SILVER MAPLE (Acer saccharinum), crown spread - 40'+ <br /> 1 <br />