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Kerria japonica

Image of Kerria japonica

Felder Rushing

Family

Rosaceae

Botanical Name

Kerria japonica

Plant Common Name

Japanese Kerria

General Description

Sunny, rose-like blooms in spring, toothed bright green leaves from spring to fall, and willowy green stems year-round make this suckering Asian shrub an excellent all-season garden plant. Of modest height, its informal arching branches are studded with golden yellow flowers in late spring. It often reblooms sparsely in summer. The double-flowered form 'Pleniflora' has longer lasting flowers on taller more vigorous stems. 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. They are prettiest if given ample space to arch and spread.

Plant in a shrub border or 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.

Characteristics

  • AHS Heat Zone

    9 - 1

  • USDA Hardiness Zone

    5 - 9

  • Sunset Zone

    2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23

  • Plant Type

    Shrub

  • Sun Exposure

    Full Sun, Partial Sun, Partial Shade

  • Height

    3'-6' / 0.9m - 1.8m

  • Width

    4'-8' / 1.2m - 2.4m

  • Bloom Time

    Spring, Late Spring

  • Native To

    China, Japan

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Arching/Fountain-shaped

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Yellow

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Yellow

  • Bark Color

    Yellow, Green, Sandy Brown

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single, Double

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    Yes

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Cutflower, Feature Plant, Foundation, Hedges, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    Sometimes

  • Self-Sowing

    Yes