Advanced Search Filters

Plant Type
Hardiness Zone
Heat Zone
Sunset Zone
Function
Sun Exposure
Soil Moisture
Water Requirement

CAREX oshimensis 'Supergold'

Image of Carex oshimensis 'Supergold'

Grandiflora

Family

Cyperaceae

Botanical Name

CAREX oshimensis 'Supergold'

Plant Common Name

Evergold Sedge, Japanese Sedge, Oshima Sedge

General Description

Japanese sedge is an evergreen perennial grown for its attractive, arching, grass-like leaves. The cultivar 'Supergold' has creamy yellow foliage with dark green margins. Panicles of brown flowers appear in late spring.

'Supergold' performs best in partial shade and moist, well-drained, fertile soils. Japanese sedges falter in soggy, waterlogged soils, unlike most other sedge species. This deer-resistant plant works well in the woodland border, as a groundcover, or in containers. Its showy leaves brighten dark spots in the garden. Though evergreen, Japanese sedge should be sheared to the ground in late winter to keep its neat appearance.

Characteristics

  • AHS Heat Zone

    9 - 6

  • USDA Hardiness Zone

    6 - 9

  • Sunset Zone

    3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Sedge or Rush

  • Sun Exposure

    Partial Sun, Partial Shade

  • Height

    10"-15" / 25.4cm - 38.1cm

  • Width

    12"-24" / 30.5cm - 61.0cm

  • Bloom Time

    Spring

  • Native To

    Japan

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Arching/Fountain-shaped

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Insignificant

  • Flower Color

    Brown

  • Fruit Color

    Sandy Brown

  • Foliage Color (Spring)

    Dark Green, Light Yellow

  • Foliage Color (Spring) Modifier

    Striped/Striated

  • Foliage Color (Summer)

    Dark Green, Light Yellow

  • Foliage Color (Summer) Modifier

    Striped/Striated

  • Foliage Color (Fall)

    Dark Green, Light Yellow

  • Foliage Color (Fall) Modifier

    Striped/Striated

  • Foliage Color (Winter)

    Dark Green, Light Yellow

  • Foliage Color (Winter) Modifier

    Striped/Striated

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Fine

  • Foliage Sheen

    Glossy

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Edging, Foundation, Groundcover, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No