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Planted at Mount Vernon


  • Upper Garden

  • Hardiness Zones

    Average annual extreme minimum temperature 1976-2005


    Thick clumps of spiky foliage and bright purple or blue flowers are perfect for mid-border planting. Like their German cousins, these benefit from division so they don't grow hollow in the middle.

    Latin Name

    Iris sibirica


    Family

    Iridaceae


    Also Known As

    Siberian flag


    Type of Plant

    Perennials

    Bloom Season

    May

    Seasons

    Spring

    Specifications

    Max Height: 4'
    Max Spread: 3'

    Uses

  • Flower Border

  • Sunlight Exposure

    Full Sun
    Part Shade

    Tolerances

  • Deer
  • Rabbit
  • Drought
  • Clay Soil
  • Erosion
  • Wet Soil

  • Attracted Wildlife

    Butterflies

    Toxicity

    Do not ingest
    Skin irritant

    Colors


    Native Range

    Europe and Central Asia


    History

    Plant collector John Bartram of Philadelphia listed Siberian irises in his catalog for 1771 to 1809.


    Bartlett Tree Expert Company has been working with Mount Vernon Estate since 2011 providing expert arboricultural care and GPS mapping for the estate’s historic trees, as well as support from their research facility.   Mount Vernon is proud to partner with Bartlett Tree Experts and appreciates their sponsorship of George Washington’s Mount Vernon Plant Finder App.

    Bring Washington's Garden Home

    Purchase our historic seeds, collected from plants grown at Mount Vernon and plant them in your own garden.

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