SILVER MAPLE(Acer saccharinum)
Leaves are opposite.10 - 15 centimetres long and nearly as wide. Deeply 5-lobed and long-pointed (middle lobe often 3-lobed). Doubly saw-toothed, with 5 main veins from base. Slender, drooping, reddish-coloured leafstalk. Dull green above, silvery-white beneath Turning pale yellow in autumn. Flowers:
6 millimetres long. Reddish buds.
Greenish-yellow flowers.Crowded. Nearly stalkless clusters. Male and female are in separate clusters.Bloom in late winter or very early spring before leaves. Fruit:
- 4-6 cm long.
- Long broad wings are paired with widely forking keys.
- Light brown.
- Matures in spring.
- Light green to brown.
- Long, spreading and often slightly drooping.
- Has a slightly unpleasant odor when crushed.
Gray. Develops long, scaly, shaggy ridges. Height:
15 - 24 metres. Diameter:
0.9 metres. Growth Rate:
- Rapid growth.
Species Requirements Distribution Range:
Zone: 3 to 8. Habitat:
- S. Ontario east to New Brunswick, south to NW. Florida, west to E. Oklahoma, north to N. Minnesota.
- Found in wet soils of stream banks, flood plains and swamps or with other hardwoods.
Tolerance to Salt:
- Full sun/partial shade.
Sensitive or Intolerant. Preferred Soil:
Sandy, loam, or clay. pH Range: 3.7 to 6.5.
- Can grow in almost any soil, but they grow faster in moist soil.
- Leaf spot.
- Leaf blister.
- Bull's-eye spot.
- Greenstriped mapleworm.
- Cottony maple scale.
- Its brittle branches are easily broken in windstorms.
- Abundant fruit produces litter.
- Susceptible to many insects and diseases including Verticillium wilt and other canker diseases.
- Its root system clogs sewer lines and lifts sidewalks.
- Insects on Silver Maples drop "honeydew" which encourages mold on surfaces.
Many mammals and birds eat the seeds.
Does well in poor soils; may be used in a location with poor soil conditions requiring fast shade or as a filler until more desirable, slow growing trees become established. Maintenance Tips:
- Popular shade tree.
Plant away from structures and streets to avoid interference with sewers and sidewalks. Remove diseased and damaged wood as needed. Carefully consider this tree's problems such as weak wood and invasive roots before using it.
Best time for pruning is between May-July, and between November-December.Avoid pruning in late winter/early spring due to sap flow (more cosmetic than detrimental). Avoid pruning from spring through summer due to insect or disease problems.
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