SelecTree: Tree Detail
RED JAPANESE MAPLE
Acer palmatum 'Atropurpureum'
Photo Locations: Hoyt Arboretum - Portland, OR, San Luis Obispo, CA and National Arboretum - Washington, DC
Utility friendly tree.
Fall color is variable; can be spectacular. May eventually require regularly scheduled light top-trimming (but not necessarily shearing) of vigorous top shoots to maintain heights below 25'.
Previously listed in the Aceraceae family.
Erect or Spreading with a Low Canopy.
Rounded or Vase Shape.
Has Deciduous foliage.
Height: 15 - 25 feet.
Width: 15 - 25 feet.
Growth Rate: 12 to 24 Inches per Year.
Longevity 50 to 150 years.
Leaves Palmate, Bronze or Purple, Bronze or Purple, Deciduous.
Flowers Inconspicuous. Flowers in Spring. Has separate male and female flowers on the same tree (monoecious).
Winged Seed, Medium (0.50 - 1.50 inches), fruiting in Summer.
Bark Light Green or Light Gray, Furrowed or Smooth.
Shading Capacity Rated as Low to Moderately Dense in Leaf.
Shading Capacity Rated as Low out of Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 2 - 10, 12 and 14 - 24.
USDA Hardiness Zones 6 - 8.
Exposure Partial Shade to Full Shade.
Clay, Loam or Sand Texture.
Highly Acidic to Slightly Alkaline Soil pH.
Seaside Tolerance is Good in Mild Zone.
Pests & Disease Information
Susceptible to Invasive Shot Hole Borer and Aphids, Armillaria, Root Rot and Verticillium.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Low.
Allergy Health Hazard.
Special Uses & Values
Cite this tree:
SelecTree. "Acer palmatum 'Atropurpureum' Tree Record." 1995-2020. Jun 3, 2020.
< https://selectree.calpoly.edu/tree-detail/acer-palmatum-atropurpureum >
SelecTree Nursery Connection Map
Cal Poly / ESRI