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IRIS sibirica (HARPSWELL SERIES)

Image of Iris sibirica (HARPSWELL SERIES)

Family

Iridaceae

Botanical Name

IRIS sibirica( HARPSWELL SERIES)

Plant Common Name

Harpswell Series Siberian Irises, Siberian Iris

Special Notice

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

General Description

Few hardy perennials are as widely adaptable as Siberian iris with its spectacular flowers and upright clumping form. The parent species of this variety is native to an enormous range from Central Europe through to Russia. The genetically complex Harpswell irises were hybridized by famed breeder Currier McEwen in Harpswell, Maine. Siberians are an adaptable clumping plant that tolerates both wet and dry soil conditions offering a versatile problem solver for cold climate gardens. This iris develops substantial tall clumps of linear blade-like, green foliage. After flowers fade the foliage remains far more lush and attractive than many other iris. These clumps will spread with time into sizable colonies that may be divided into many new plants.

In early summer these plants put forth many beardless three-part flowers in blue, yellow or white. These are held on tall stems just above the foliage tips. They make excellent cut flowers. Siberian iris prefers sunny locations and fertile soil with average drainage. 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 bed or border. They look most impressive when planted in masses and as upright accents at the edge of water gardens and pools.

Characteristics

  • AHS Heat Zone

    9 - 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, Alkaline

  • 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

    Cutflower, Feature Plant, Foundation, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    No