SelecTree - Tree Detail Record

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Photo Credits:
M. Ritter, W. Mark and J. Reimer
Illustrations by Robert O'Brien

Photo Locations:
Cal Poly San Luis Obispo Campus, CA, Los Angeles County Arboretum - Arcadia, CA, National Arboretum - Washington, DC and Arnold Arboretum - Boston, MA.

 JAPANESE MAPLE
Acer palmatum

General Notes

     Utility friendly tree. Japanese Maple is a commonly used accent tree in lawns or moderately moist settings, beneath an overstory of taller shade trees, and as a residential patio tree. It prefers a moist, well-drained loam with plenty of added humus. It is resistant to oak root fungus and green- leaf varieties can tolerate more sun. There are a multitude of hybrids, including variegated, laceleaf, miniature and purple-leaved varieties. Varieties 'Atropurpureum' and 'Bloodgood' may eventually require regularly scheduled light top-trimming (but not necessarily shearing) of vigorous top shoots to maintain heights below 25'. Native to Japan and Korea.
     An Acer palmatum in Cap. Park is registered as a California Big Tree. It measures 37 feet high, with a trunk circumference of 74 inches and a crown spread of 46 feet.
  List all Sapindaceae | Acer

• Acer palmatum - Sapindaceae
• Native To: Japan and Korea
• Habit: Erect or Spreading with a Low Canopy.
  Has Deciduous foliage.
• Shape: Rounded, Umbrella or Vase
• Sunset Zones: 2 - 10, 12 and 14 - 24
• USDA Hardiness Zones: 6 - 8
• Exposure: Partial Shade to Full Shade
• Water Needs: Moist but Well Drained Soil
• Soil Type: Clay, Loam or Sand
• Soil pH: Highly Acidic to Slightly Alkaline
• Seaside Tolerance: Good in Mild Zone
• Height: 25 feet
• Canopy Width: 30 feet
• Growth Rate: 12 to 24 Inches per Season
• Landscape Use: Screen, Bonsai
• Longevity: 50 to 150 years
• Leaves: Palmate Light to Medium Green, Bronze or Purple. Red, Gold, Orange or Multicolored in Fall. Deciduous.
• Flowers: Inconspicuous, Purple. Flowers in Spring. Has separate male and female flowers on the same tree (monoecious).
• Fruit: Brown Winged Seed, Medium (0.50 - 1.50 inches), fruiting in Summer.
• Bark: Green, Light Green, Light Gray or Red Brown, Furrowed or Smooth
• Pest & Disease: Resistant to Oak Root Fungus. Susceptible to Aphids, Root Rot and Verticillium
• Shading Capacity: Rated as Low to Moderately Dense in Leaf and Low out of Leaf.
• Branch Strength: Rated as Medium
• Litter Issue: Dry Fruit
• Root Damage Potential: Rated as Low
• Health Hazard: Allergy
• Biogenic Emissions: Moderate
• Fire Resistance: Favorable

Cite This Page:
SelecTree. "Acer palmatum Tree Record." 1995-2012. May 24, 2013.
< http://selectree.calpoly.edu/treedetail.lasso?rid=66 >