Key Characteristics
• Mature Size: 40–50 ft tall | 15–20 ft wide
• Growth Rate: Moderate to fast
• Form: Narrow, upright, columnar
• Fall Color: Orange-red to red
• Lifespan: 40–60+ years with proper care
Planting & Care Considerations
• Full sun preferred for best form and color
• Allow vertical clearance for mature height
• Requires consistent deep watering during establishment
• Benefits from mulch and soil improvement in heavy clay
Why The Armstrong Maple Works on the Front Range
• Narrow form ideal for smaller yards and parkways
• Better heat tolerance than many traditional maples
• Stronger structure than silver maple
• Performs well in urban landscapes when watered correctly
Common Problems
• Iron chlorosis in alkaline soils
• Leaf scorch during hot, dry summers
• Stress-related decline if irrigation is inconsistent
Best Use Scenarios
• Narrow planting strips and parkways
• Small front yards needing vertical shade
• Street trees with limited horizontal space
Great Western Tree Care
Larkspur, CO Location
Mon - Fri: 8a to 5p
9575 Spruce Mountain Rd
Larkspur, CO 80118
(720) 535-8769
Aurora, CO Location
Mon - Fri: 8a to 5p
10730 E Bethany Dr
Aurora, CO 80014
(303) 913-7749
