Japanese kerria
Kerria japonica
A cheerful, easy deciduous shrub of the rose family grown for two seasons of interest: bright golden-yellow flowers in mid-spring and slender, arching kelly-green stems that stay green through winter for a real cold-season feature. The single five-petaled species is pretty, but the double, pompom-flowered form "Pleniflora" is by far the most widely grown. Notably shade-tolerant — it actually flowers best in part shade, since full sun bleaches the blooms. The honest catch is its spread: it suckers and runs underground into a widening thicket, so site it where it has room to colonise or be ready to dig out the suckers. Despite the common name, POWO (Kew) places its native range in China, not Japan; it has simply been cultivated in Japan for a very long time. Grown purely for ornament — it is not a food plant.
Climate fit: moderate (47/100)
Border
Filler
Structure
Light
Part shade / Full sun
Water
Moderate water
Mature size
36-72" tall · 48" apart
Hardy in zones
4a-9b
very cold to frosty winters
Native in Illinois
No
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Grown purely as an ornamental flowering shrub for its golden spring bloom and bright green winter stems — it is not a food plant and has no culinary use.
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.
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Where this plant fits
Suitable across 41 ecoregions — 40 climate-resilient through 2070 · 1 suited today. Best matches first.
Appalachian mixed mesophytic forests
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Appalachian-Blue Ridge forests
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Arizona Mountains forests
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Atlantic coastal pine barrens
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Blue Mountains forests
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Canadian Aspen forests and parklands
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Central Pacific Northwest coastal forests
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Central Tallgrass prairie
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Central-Southern Cascades Forests
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Chilean Matorral
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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). Japanese kerria (Kerria japonica). Retrieved 2026, June 25, from https://plotwright.com/plants/kerria-japonica
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
Plants of the World Online (POWO)
Botanical research database
Backs 17 fields
Identity
Summary
Plant type
Light
Moisture
Hardiness
Heat zone
Size
Spacing
Habit
Design roles
Seasonal interest
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