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Japanese andromeda

Japanese andromeda

Pieris japonica
A dense, upright-to-rounded broadleaf evergreen shrub, 8 to 10 feet tall and 6 to 8 feet wide, grown for year-round structure and its long late-winter-to-spring show of drooping panicles of fragrant, urn-shaped white (sometimes pink) flowers. Glossy dark green leaves are joined each spring by a striking flush of bronze-red to coppery new growth, and the chains of greenish-red flower buds form in fall and hold all winter for a second season of interest. Native to southeastern China, central to southern Japan, and Taiwan, it wants acidic, evenly moist but well-drained soil, shelter from harsh winter wind, and protection from hot afternoon sun in warmer zones. All parts are toxic if eaten.
Climate fit: narrow (34/100)
Structure
Focal point
Border
Light
Full sun / Part shade
Water
Consistent moisture
Mature size
8-10 ft tall · 4.5 ft apart
Hardy in zones
4b-8b
very cold to frosty winters
Native in Illinois
No

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All parts of the plant are toxic to people and livestock - they contain grayanotoxins, the same class of toxin as in rhododendrons and azaleas.

Cold hardiness

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
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
Well-suited today and still thriving in 2050.

Heat tolerance

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.
Loading AHS heat-zone data for this location...

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Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
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Educator packet

Plant packet
Japanese andromeda educator packet
A dense, upright-to-rounded broadleaf evergreen shrub, 8 to 10 feet tall and 6 to 8 feet wide, grown for year-round structure and its long late-winter-to-spring show of drooping panicles of fragrant, urn-shaped white (sometimes pink) flowers. Glossy dark green leaves are joined each spring by a striking flush of bronze-red to coppery new growth, and the chains of greenish-red flower buds form in fall and hold all winter for a second season of interest. Native to southeastern China, central to southern Japan, and Taiwan, it wants acidic, evenly moist but well-drained soil, shelter from harsh winter wind, and protection from hot afternoon sun in warmer zones. All parts are toxic if eaten.
Scientific name
Pieris japonica
Plant type
shrub
Hardiness
4b-8b
Light
full-sun, part-shade
Moisture
consistent
Spacing
54 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.

Sources & citations

Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Japanese andromeda (Pieris japonica). Retrieved 2026, August 20, from https://plotwright.com/plants/pieris-japonica
Sources used for this record
This record is compiled from the sources below.
NC State Extension Gardener Plant Toolbox
University extension service
Plants of the World Online (POWO)
Botanical research database
GBIF
Botanical research database
Wikipedia (ecoregion articles)
Botanical research database
Wikimedia Commons
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