Bigleaf Maple, Oregon Maple
 

Mature Size, Growth, Longevity

Average mature size of 45-75' tall and 45-75' wide. Pyramidal form. Slow to medium growth rate.

Native Range

U.S. Native — Alaska to southern California. Introduced 1812.

Flower and Fruit Details

Flowers are yellow, fragrant, produced in 4-8" long nodding racemes, appearing with the leaves in April-May. Each flower is approximately 0.33" across. Fruits are winged samaras, approximately 1.5" long, the nutlet covered with brown pubescence, wings nearly glabrous, wings forming a 60° angle.

Leaf and Bark Features

Leaves often reddish bronze when emerging, maturing to glossy dark green, pale beneath; Opposite, simple, 8-12" across, often bigger and deeply cut on vigorous shoots, 3-5 toothed lobes; petiole-10-12" long, yields a milky sap when detached. Yellow-orange in fall. Bark is gray to reddish brown, furrowed with small flattened platelets.

Culture and Care

Prefers cool moist environment. Zones 5-7(9).

Strengths, Weaknesses, Other Facts

Fairly drought tolerant. Seems to pop up in fence rows and waste areas, invasive root system that can break walks and drives.

Suggested Uses

Seldom cultivated; recommended for planting natural areas.

Taxa and Plants of this Species at BCA