Botanical Name: Acer macrophyllum
Common Name: Bigleaf maple (Oregon Maple) Type of Plant: dicot: tree Character deciduous Habit of Growth: Overall Shape an erect, single or multi-trunked tree, with ascending branches forming a broad rounded canopy; young branches are smooth, older growth is covered with gray bark Height 25'-50'(90') Spread 2/3 to equal Growth Rate rapid Environment: Exposure outdoor full/partial sun, can tolerate shade at inland location Soil moist, acidic, well-draining loam; tolerates heavier soils Hardiness hardy (zones 4-17); thrives in mild-climate foothills Morphology: Leaves palmate, opposite, mostly 3-5 lobed, 8"-15" (18") long and as wide, petioles 6"-12" long; dark green above, pale green beneath Flowers yellowish green, in drooping staminate or pistillate racemes 4"-6" long Fruit a two-winged samara; 1 ½"-2" long, covered w/short hairs Propagation: seed (stratify for 2 months) Usage: a large shade tree (can be controlled in growth and size by watering and fertilizing less); develops a yellow fall color of leaves in colder areas; best for rustic, woodsy landscapes Landscape Care: Watering likes regular; tolerates occasional deep soak after established Fertilizing little required except if grown in heavy watered area Pruning head high when young to develop primary tree-form Pests/Diseases powdery mildew on leaves if planted near the coast Special Conditions/Other Origin: California/Alaska Family: Aceraceae Notes: |
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