The Armstrong Maple (Acer × freemanii ‘Armstrong’) is a striking, narrow-upright deciduous tree celebrated for its tall columnar habit, silver-gray bark and good adaptability. It’s an excellent choice for sites where space is limited — such as narrow yards, property lines, or as a visual vertical accent.

Hardiness: approximately USDA Zones 4-9
Mature Height: typically, 40-70 ft
Mature Spread (width): approximately 10-15 ft
Soil: Prefers moist, well-drained soils
Sunlight: full sun to part shade
Watering: Keep soil consistently moist
Pruning: Minimal; prune only to remove dead, damaged or crossing branches
Foliage & Seasonal Color
Leaves: Green in summer, with often silvery under-sides (inheritance from the silver maple parent).
Fall Color: Typically, yellow-orange to orange-red, but can be variable
Bark: Attractive silvery-grey bark adds winter interest.