General Plant Information (Edit)
Plant Habit: Shrub
Tree
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 10b
Plant Height: 6 to 35 feet
Plant Spread: 10 to 15 feet
Leaves: Good fall color
Deciduous
Broadleaf
Fruit: Edible to birds
Other: 3/4 to 1 inch long, green two-winged samaras, maturing to tan; each containing a single seed.
Fruiting Time: Late spring or early summer
Flowers: Showy
Flower Color: Other: Yellowish-green
Bloom Size: Under 1"
Flower Time: Spring
Uses: Erosion control
Wildlife Attractant: Birds
Propagation: Other methods: Cuttings: Stem
Layering
Pollinators: Various insects
Miscellaneous: Monoecious

Image
Common names
  • Rocky Mountain Maple
  • Mountain Maple
  • Red Maple
  • Rock Maple
  • Maple

Photo Gallery
Location: Giant Staircase, Utah County, Utah, United States
Date: 2023-07-07
Acer glabrum var. glabrum
Location: Giant Staircase, Utah County, Utah, United States
Date: 2023-07-07
Acer glabrum var. glabrum
Location: Little Cottonwood Canyon, Salt Lake County, Utah, United States
Date: 2020-08-06
Acer glabrum var. glabrum
Location: Squak Mountain State Park, Issaquah, Washington
photo credit: Walter Siegmund
Plant Events from our members
MrsBinWY On November 21, 2020 Seeds sown
WS 7 (all) from Pole Mountain (collected June 2020) in milk jug
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