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Arrhenatherum

Image of Arrhenatherum

Family

Poaceae

Botanical Name

Arrhenatherum

Plant Common Name

Oatgrass

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Arrhenatherum are perennial clump or tuft type grasses that are native to Eurasia, and grow from 9 to 60 inches tall and 12 to 24 inches wide. Used as ornamental grasses and as pasture in agriculture. Most have seed heads that form on top of tall stems, and some ornamental cultivars have variegated leaves.

Characteristics

  • USDA Hardiness Zone

    4 - 9

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 15, 16, 17, 23, 24

  • Plant Type

    Grass

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    9"-60" / 22.9cm - 152.4cm

  • Width

    12"-24" / 30.5cm - 61.0cm

  • Bloom Time

    Early Summer

  • Native To

    Europe, Asia

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Average

  • Soil type

    Loam

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Habit

    Clump-Forming

Ornamental Features

  • Flower Color

    Yellow

  • Fruit Color

    Green, Tan

  • Foliage Color (Spring)

    Gray Green

  • Foliage Color (Spring) Modifier

    Variegated

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Summer) Modifier

    Variegated

  • Foliage Color (Fall)

    Dark Green

  • Foliage Color (Fall) Modifier

    Variegated

  • Foliage Color (Winter)

    Tan, Brown

  • Foliage Color (Winter) Modifier

    Variegated

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    Yes

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bedding Plant, Feature Plant, Groundcover

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No