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Iris sibirica

Image of Iris sibirica

James H. Schutte

Family

Iridaceae

Botanical Name

Iris sibirica

Plant Common Name

Siberian Iris

General Description

Siberian Iris is a popular and attractive perennial that is native from regions in central Europe through to Russia. It is an adaptable herbaceous plant that develops substantial tall clumps of linear blade-like green foliage. In early summer it displays many beardless iris flowers that appear on tall stems. These may be white, purple, or violet-blue.

Siberian iris grows best in sunny locations and fertile soil with average drainage, but tolerates slight waterlogging. It is quite cold tolerant and slowly spreads, so clumps should be divided every three years or so. Enjoy this vigorous perennial in any large, sunny flower bed. They look most impressive when planted in masses and flower and overall grow best where spring and summer are not overly hot.

Characteristics

  • AHS Heat Zone

    7 - 1

  • USDA Hardiness Zone

    3 - 8

  • Sunset Zone

    A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    20"-48" / 50.8cm - 121.9cm

  • Width

    24"-28" / 61.0cm - 71.1cm

  • Bloom Time

    Early Summer, Summer

  • Native To

    Eastern Europe, Russia/Siberia

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Average

  • Soil type

    Clay, Loam, Sand

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Summer

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Purple, Blue Violet

  • Foliage Color (Spring)

    Green, Dark Green

  • Foliage Color (Summer)

    Green, Dark Green

  • Foliage Color (Fall)

    Green, Dark Green

  • Fragrant Flowers

    Yes

  • 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

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bog Garden, Cutflower, Feature Plant, Foundation, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    No