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Rocky Mountain Maple

Acer glabrum

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Rocky Mountain Maple (Acer glabrum) at Town And Country Gardens

Rocky Mountain Maple

Rocky Mountain Maple

(Photo courtesy of NetPS Plant Finder)

Rocky Mountain Maple (Acer glabrum) at Town And Country Gardens

Rocky Mountain Maple foliage

Rocky Mountain Maple foliage

(Photo courtesy of NetPS Plant Finder)

Height:  20 feet

Spread:  15 feet

Sunlight:  partial shade  full shade 

Hardiness Zone:  4

Other Names:  Douglas Maple

Description:

A native woodland tree that does best in similar conditions; partial shade, adequate moisture, protection from the wind and highly organic soil; good red fall color and showy red fruits are its primary attributes; best used in a woodland setting

Ornamental Features

Rocky Mountain Maple is primarily grown for its highly ornamental fruit. It features abundant showy rose samaras in late summer. It has green foliage throughout the season. The lobed leaves turn an outstanding brick red in the fall. The flowers are not ornamentally significant.

Landscape Attributes

Rocky Mountain Maple is an open deciduous tree with an upright spreading habit of growth. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

This is a relatively low maintenance tree, and should only be pruned in summer after the leaves have fully developed, as it may 'bleed' sap if pruned in late winter or early spring. It has no significant negative characteristics.

Rocky Mountain Maple is recommended for the following landscape applications;

  • Shade
  • Naturalizing And Woodland Gardens

Planting & Growing

Rocky Mountain Maple will grow to be about 20 feet tall at maturity, with a spread of 15 feet. It has a low canopy with a typical clearance of 2 feet from the ground, and is suitable for planting under power lines. It grows at a medium rate, and under ideal conditions can be expected to live for 50 years or more.

This tree does best in partial shade to shade. It is very adaptable to both dry and moist locations, and should do just fine under average home landscape conditions. It is very fussy about its soil conditions and must have rich, acidic soils to ensure success, and is subject to chlorosis (yellowing) of the leaves in alkaline soils. It is quite intolerant of urban pollution, therefore inner city or urban streetside plantings are best avoided, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in both summer and winter to conserve soil moisture and protect it in exposed locations or colder microclimates. This species is native to parts of North America.

 
 
Hardiness Zone Plant Height Minimum Sunlight Soil pH Preference
Characteristics
Shade  Naturalizing 
Applications
Fruit  Fall Color 
Ornamental Features

Disclaimer - This Plant Finder tool is an online resource representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact the store directly for availability. It does not include our entire inventory of plants, so be sure to visit our store to see varieties that may not be represented on this list.