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KERRIA japonica 'Shannon'

Image of Kerria japonica 'Shannon'

Family

Rosaceae

Botanical Name

KERRIA japonica 'Shannon'

Plant Common Name

Japanese Kerria

General Description

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 'Shannon' spangle its arching branches in late spring. 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 adopt the prettiest habit 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.

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

    5'-8' / 1.5m - 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

    Green

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • 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