Jesse Saylor
Family
Aceraceae
Botanical Name
Acer glabrum ssp. douglasii
Plant Common Name
Douglas's Rock Maple
General Description
Native to rocky slopes and moist ravines in far western North America, this small, hardy, relatively drought tolerant maple makes a good choice for low-maintenance landscapes within its native range. An upright, typically multistemmed shrub or small tree, it has shallowly three-lobed, medium-green leaves that turn a good yellow in fall. Although rather sparsely branched and rangy in shady sites, it forms a much denser plant in partial sun. Its greenish yellow flowers appear in early spring, followed by two-winged fruits that mature from green to brown. The smooth, gray bark becomes rough on older stems. Young twigs are a conspicuous dark red.
Give this maple partial shade and well-drained, acidic to slightly alkaline soil. It is useful as a specimen or for massing in naturalistic and informal plantings.
Characteristics
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AHS Heat Zone
6 - 1
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USDA Hardiness Zone
4 - 6
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Sunset Zone
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 10
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Plant Type
Tree
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Sun Exposure
Full Sun, Partial Sun, Partial Shade
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Height
6'-20' / 1.8m - 6.1m
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Width
5'-15' / 1.5m - 4.6m
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Bloom Time
Early Spring
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Native To
Northwestern United States, Canada
Ornamental Features
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Flower Interest
Insignificant
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Flower Color
Yellow Green
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Fruit Color
Green, Pink, Brown
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Foliage Color (Spring)
Green
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Foliage Color (Summer)
Green
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Foliage Color (Fall)
Yellow
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Bark Color
Burgundy, Gray
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Fragrant Flowers
No
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Fragrant Fruit
No
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Fragrant Foliage
No
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Bark or Stem Fragrant
No
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Flower Petal Number
Single
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Repeat Bloomer
No
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Showy Fruit
No
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Edible Fruit
No
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Showy Foliage
No
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Foliage Texture
Medium
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Foliage Sheen
Matte
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Evergreen
No
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Showy Bark
No
