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Gerald L. Klingaman
Rosaceae
Kerria japonica 'Golden Guinea'
Japanese Kerria
Japanese kerria is a suckering deciduous shrub from eastern Asia. Its yellow, rose-like blooms in spring, toothed bright green leaves from spring to fall, and willowy bright green stems year round make it an excellent all-season garden plant. The extra-large golden yellow flowers of the cultivar 'Golden Guinea' spangle its arching branches in late spring and early summer. It often reblooms sparsely in summer. The leaves turn pale yellow in fall.
This long-lived, hardy, carefree shrub prefers full to partial sun and thrives in fertile to average, well-drained soil. Once established, plants will tolerate moderate periods of drought—though average soil moisture is preferred. They are prettiest if given ample space to arch and spread.
Plant in a shrub border, along a foundation, or enjoy it as a specimen. Winter gardens will benefit from the subdued winter color of its unseasonably green stems. These can also be cut for cold-season flower arrangements.
Japanese kerria occasionally escapes gardens. Double-flowered forms are largely sterile and therefore less likely to invade neighboring areas.
9 - 1
5 - 9
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
Shrub
Full Sun, Partial Sun
4'-6' / 1.2m - 1.8m
6'-8' / 1.8m - 2.4m
Spring, Late Spring
China, Japan
Acidic, Neutral, Alkaline
Well Drained
Clay, Loam, Sand
Medium
Drought Tolerant, Average Water
Arching/Fountain-shaped
Spring, Summer, Fall, Winter
Showy
Yellow
Green
No
Single
Yes
Matte
Smooth
Cutflower, Feature Plant, Foundation, Hedges, Mixed Border
Sometimes
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