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KERRIA japonica 'Pleniflora'

Image of Kerria japonica 'Pleniflora'

Gerald L. Klingaman

Family

Rosaceae

Botanical Name

KERRIA japonica 'Pleniflora'

Plant Common Name

Double-flowered Japanese Kerria, Japanese Kerria

General Description

Grown for its sunny flowers and its evergreen stems, Japanese kerria is a suckering deciduous shrub from China and Japan. The double-flowered kerria is popular for its bright yellow pompon flowers in late spring that last longer than those of other cultivars. Its also has taller, more erect stems. The oval, toothed, bright green leaves turn yellow in fall. Plants sometimes rebloom in summer.

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. Since its stems are evergreen, Japanese kerria adds a spot of color to otherwise dormant winter borders. This plant needs room to roam; try it in a shrub border, or grow it as a feature plant. The colorful stems are popular in winter flower arrangements.

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, 24

  • Plant Type

    Shrub

  • Sun Exposure

    Full Sun, Partial Sun, Partial Shade

  • Height

    8'-10' / 2.4m - 3.0m

  • Width

    8'-10' / 2.4m - 3.0m

  • Bloom Time

    Spring, Late Spring, Late Summer

  • 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

    Upright/Erect

  • 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

    Green, Sandy Brown

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Double

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Cutflower, Feature Plant, Hedges, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No