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    • Photo of Eryngium planum flower by H. Zell

    Photo by H. Zell

    This file is licensed under the Creative Commons Attribution-Share Alike 3.0 license.

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    Eryngium planum

    Also Known As

    • Plains Eryngo
    • Sea Holly

    Plant type

    perennial

    size

    • H: 2'-3'
    • W: 1'-2'

    planting zones

    • 5a-9b

    More Options

    Eryngium planum plant details

    Eryngium planum is a broadleaf evergreen perennial with green foliage. In fall and summer blue flowers emerge. Attracts bees and butterflies making it an excellent addition to pollinator gardens. Grows well with sun and even moisture - regular water. Drought tolerant once established. Does well in rich and well-drained soil.

    CHARACTERISTICS OF Eryngium planum

    Plant type: perennial
    Plant family: apiaceae
    Foliage: evergreen green
    Mature size: 1 FT - 2 FT - wide, 2 FT - 3 FT - tall
    Flowers: blue blooms in fall and summer
    Uses: cutting garden

    GROWING CONDITIONS for Eryngium planum

    USDA Zones: 5a - 9b
    Sun exposure: sun
    Watering frequency: even moisture - regular
    Resistant to: deer
    Soil needs: rich and well-drained

    Nursery contributed plant descriptions

    Easy and rewarding perennial with 2-3' tall star burst of blue umbels. Excellent cut flower and dries well too.

    By: Dancing Oaks Nursery

    Gardening facts about Eryngium planum plant

    How to Grow Eryngium planum

    • Sun Exposure

      • sun

    • Water Needs

      • even moisture - drought tolerant

    • Soil Needs

      • well-drained
      • rich

    Features

    • Foliage Color

      • green

    • Flower Color

      • blue

    • Wildlife

      • bees
      • butterflies
      • deer resistant

    • Flower Season

      • summer
      • fall

    • Foliage Season

      • evergreen

    See other plant types of Eryngium for your garden

    Eryngium alternatum

    Plant Type

    Perennial

    Zones

    7a-10b

    Size

    Height: 5'

    Width: 3'

    • sun - mostly shade
    • even moisture - regular
    Photo of Eryngium alternatum foliage by Stan Shebs
    View Plant

    Eryngium paniculatum

    aka Chupalla, Sea Holly

    Plant Type

    Perennial

    Zones

    8a-11

    Size

    Height: 2'-6'

    Width: 2'-4'

    • sun - mostly shade
    • even moisture - drought tolerant
    Photo of Eryngium paniculatum flower by Stan Shebs
    View Plant

    Eryngium agavifolium

    aka Eryngium bromeliifolium, Agave Leaved Sea Holly, Sea Holly

    Plant Type

    Perennial

    Zones

    6a-9b

    Size

    Height: 3'-5'

    Width: 24"

    • sun
    • even moisture - drought tolerant
    • dry in summer
    Photo of Eryngium agavifolium foliage, form by Kenpei
    View Plant

    More Options

    Eryngium bourgatii

    aka Mediterranean Sea Holly

    Plant Type

    Perennial

    Zones

    4a-9b

    Size

    Height: 2'

    Width: 1'

    • sun
    • even moisture - drought tolerant
    Photo of Eryngium bourgatii foliage by Cistus Nursery
    View Plant

    More Options

    Eryngium 'Sapphire Blue' PP11088

    aka Sapphire Blue Sea Holly

    Plant Type

    Perennial

    Zones

    5a-9b

    Size

    Height: 2'-3'

    Width: 1'-2'

    • sun
    • even moisture - drought tolerant
    Photo of Eryngium 'Sapphire Blue' PP11088 flower by Dancing Oaks Nursery
    View Plant

    More Options

    +41 more Eryngium
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