SelecTree: Tree Detail
GERLING RED MAPLE
Acer rubrum 'Gerling'
Photo Locations: National Arboretum - Washington, D.C. and Hoyt Arboretum - Portland, OR
Slow growing tree that is often confused with other cultivars of Norway Maple.
Trees may be referred to as male or female.
Previously listed in the Aceraceae family.
Erect or Spreading with a Low Canopy.
Has Deciduous foliage.
Height: 30 - 35 feet.
Width: 25 - 35 feet.
Growth Rate: 12 Inches per Year.
Longevity 50 to 150 years.
Leaves Lobed and Palmate, Green, Red or Purple or Bronze, Deciduous.
Flowers Showy. Red. Flowers in Spring. Has either male or female reproductive parts (dioecious). Trees may be sold as male or female.
Red Samara, Large (1.50 - 3.00 inches), fruiting in Spring or Summer.
Bark Light Gray, Scaly.
Shading Capacity Rated as Moderate in Leaf.
Shading Capacity Rated as Moderately Low out of Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 1 - 9 and 14 - 17.
USDA Hardiness Zones 4 - 8.
Exposure Full Sun to Partial Shade.
Wet to Moist Soil.
Clay, Loam or Sand Texture.
Highly Acidic to Slightly Alkaline Soil pH.
Salinity Tolerance is Moderate on Coast.
Seaside Tolerance is Good in Mild Zone.
Pests & Disease Information
Susceptible to Aphids, Armillaria.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium Weak
Root Damage Potential Rated as Low.
Allergy Health Hazard.
Special Uses & Values
Riparian or Screen.
Cite this tree:
SelecTree. "Acer rubrum 'Gerling' Tree Record." 1995-2021. May 13, 2021.
< https://selectree.calpoly.edu/tree-detail/acer-rubrum-gerling >