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How to Grow Acer japonicum Plants in your Garden

Gardener's HQ Guide to Growing Downy Japanese Maple / Amur Maple

Downy japanese maple aconitifolium

Momiji, Acer japonicum photograph by Koichi Oda.


Acer japonicum

Acer japonicum, the Amur Maple by photosteve101.

Acer japonicum Growing and Care Guide

  • Scientific Name: Acer japonicum
  • Common Name: Downy japanese maple aconitifolium, Amur Maple, Fullmoon Maple, Red Downy Japanese Maple.
  • Growing Zone: USA: 5 to 7
  • Life Cycle / Plant Type: Shrub, Tree

Plant Details

  • Plant Height (Inches): 120 to 360
  • Plant Spread (Inches): 120 to 360
  • Time of Bloom: Spring
  • Flower Details: Red
  • Leaf Foliage: Green
  • Fruit:
  • Growth Form: Irregular or sprawling, Spreading or horizontal, Upright or erect

Ideal Growing Conditions

  • Best Light Conditions: shade to partial shade partial sun
  • Rate of Growth: Grows slowly
  • Suitable Soil Types: Acidic, Clay, Loamy, Neutral, Sandy, Slightly alkaline, Well drained
  • Soil Moisture: Moist

Caring Conditions

  • Care:
  • Level of Maintenance: Low
  • Propagation: Grafting or soft-wood cuttings
  • How to Prune: Requires little to no pruning. In some cases hard pruning can be disruptive.
  • Pests: Aphids and horse chestnut scale are sometimes a problem
  • Diseases: Usually disease free but Verticillium wilt can be problematic

Further Information

  • Can Attract:
  • Tolerant of:
  • Best Garden Use: Container, Areas requiring pest tolerance, Standard, Specimen
  • Genus Detail: Acer
  • Further Reading and References: Here and Here
  • Family: Sapindaceae
  • Closely Related Family members: Japanese maple; Norway maple; Heart Pea; and Yellowhorn.
  • Miscellaneous: Attractive foliage, Non-native to North America, Inconspicuous flowers or blooms



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