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ACER platanoides 'Olmsted'
Norway maple is a fast-growing, medium to large, deciduous shade tree native to Europe but naturalized in the United States and elsewhere. Similar to and possibly synonymous with the cultivar 'Erectum,' 'Olmstead' is a pyramidal tree that is narrowly conical when young. The large, deep green, five- to seven-lobed leaves turn pumpkin yellow in fall. The leaf stems exude a milky latex if severed. Clustered yellow-green flowers – which are more abundant and conspicuous than those of many maples – are followed by winged brown seeds. The bark is dark gray and fissured.
Norway maple is very tolerant of a wide range of sites and conditions but does best in locations with full sun to part shade and well-drained average soil. This tough and adaptable tree does well in urban settings and is useful for narrow sites. Its dense roots and shade and its penchant for prolific self-sowing make it a poor choice for gardens and natural areas. Its sale is banned in Massachusetts and several other areas because of its invasiveness.
7 - 1
3 - 7
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Full Sun, Partial Sun, Partial Shade
35'-45' / 10.7m - 13.7m
20'-25' / 6.1m - 7.6m
Early Spring, Spring
Acidic, Neutral, Alkaline
Clay, Loam, Sand
Pollution, Drought, Soil Compaction
Drought Tolerant, Average Water
Spring, Summer, Fall
Lemon Yellow, Yellow Green, Chartreuse
Green, Tan, Sandy Brown
Green, Dark Green
Brown, Sandy Brown, Gray
Feature Plant, Shade Trees, Street Trees
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