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Acer
Fullmoon maple
Habit (mature) · User:SB_Johnny / Wikimedia Commons · CC BY-SA 3.0
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Fullmoon maple

Acer japonicum
A refined small deciduous tree from the mountains of Japan, Manchuria, and Korea, grown above all for its nearly round, many-lobed leaves and its brilliant red-orange autumn color. It builds slowly to a rounded, spreading 15-30 feet, carrying small reddish-purple flowers in spring before the foliage hardens. A classic specimen and dappled-shade understory tree that resents hot, dry, windy sites; not native to North America.
Review: Source-backed
Climate fit: narrow (30/100)
Focal point
Structure
Light
Full sun / Part shade
Water
Consistent moisture
Mature size
180-360" tall · 240" apart
Hardy in zones
5a-7b
very cold to cold winters
Native in Illinois
No

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Grown strictly as an ornamental specimen, accent, and bonsai subject; it is not a human food crop, and no major toxicity is reported.

Cold hardiness

Future
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
USDA
Published baseline for this location from 1991-2020.
Source: USDA Plant Hardiness Zone Map 2023 (1991-2020 climatology) via ArcGIS FeatureServer
Well-suited
2050
Zone 7a
Plotwright
Projected zone for this same location in 2050 (2041-2070) using SSP3-7.0 (regional rivalry).
Well-suited
In plain terms: This location is in Zone 6b today. Its hardiness profile is cold winters, and coldest nights are typically around -3°F. By 2050, the projected hardiness zone is Zone 7a based on SSP3-7.0 (regional rivalry). That is a +0.5-zone shift from Zone 6b to Zone 7a by 2050.
Well-suited today and still thriving in 2050.

Heat tolerance

Future
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
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Sources & citations

Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Fullmoon maple (Acer japonicum). Retrieved 2026, June 13, from https://plotwright.garden/plants/acer-japonicum
Sources for every fact
Every fact on this page traces to a source. 18 fields cited18 source-backed.
NC State Extension Gardener Plant Toolbox
University extension service
Backs 17 fields
Identity
Summary
Plant type
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Moisture
Hardiness
Heat zone
Size
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Habit
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Wikimedia Commons
Photo · CC BY-SA 3.0
Backs 1 field
Image

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