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ACORUS gramineus

Image of Acorus gramineus

Gerald L. Klingaman

Family

Acoraceae

Botanical Name

ACORUS gramineus

Plant Common Name

Grassleaf Sweet Flag

General Description

Grassleaf sweet flag is a semi-evergreen perennial that originates from Japan. It is grown for its neat clumping habit and attractive grass-like foliage, which is aromatic when crushed. There are many highly desirable cultivars of sweet flag such as the golden variegated 'Golden Edge' and the dwarf 'Ogon'. This perennial is easy to grow if provided with rich evenly moist soil and full to partial sun. Plant in boggy gardens or in fertile beds and borders. These plants will not tolerate deep standing water.

Characteristics

  • AHS Heat Zone

    12 - 2

  • USDA Hardiness Zone

    5 - 9

  • Sunset Zone

    3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    10"-12" / 25.4cm - 30.5cm (12)

  • Width

    10"-12" / 25.4cm - 30.5cm (12)

  • Bloom Time

    Late Spring, Early Summer

  • Native To

    Eastern Asia, Japan

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Poorly Drained

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Wet Site

  • Growth Rate

    Medium

  • Habit

    Clump-Forming

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features

  • Flower Interest

    Insignificant

  • Flower Color

    Green

  • Fruit Color

    Tan

  • Foliage Color (Spring)

    Green, Light Green

  • Foliage Color (Summer)

    Green, Dark Green

  • Foliage Color (Fall)

    Green, Dark Green

  • Foliage Color (Winter)

    Green, Dark Green, Sandy Brown

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    Yes

  • 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

    Semi-Evergreen

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bog Garden, Edging, Groundcover, Mixed Border, Water Gardens

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No