Red Maple, Rocky Mountain Maple

Acerglabrum

Family
Sapindaceae (sap-in-DAY-see-ee)
Genus
Acer (AY-ser)
Species
glabrum (GLAY-brum)
Synonym
Acer glabrum var. glabrum
Acer glabrum subsp. glabrum
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Height
12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)
Spacing
10-12 ft. (3-3.6 m)
Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
N/A
Bloom Color
Pink
Bloom Time
Late Spring/Early Summer
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From softwood cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
By grafting
By simple layering
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Portland, Oregon

Featured Videos

Gardener's Notes:

0
positive
2
neutrals
0
negative
Sort By:
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O
O
Paradise, CA (Zone 9a) | August 2011 | neutral

Acer glabrum is native throughout Western North America, extending east from southern Alaska, British Columbia, Alberta, to western parts...Read More

B
Braselton, GA (Zone 8a) | March 2007 | neutral

Acer glabrum ROCKY MOUNTAIN MAPLE Dec (z5) (WNa)
The 3-lobed, shiny-green leaves of this large shrub/sm tree spin gracefully on t...Read More

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