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    • Photo of Conoclinium coelestinum flower by Prairie Nursery

    Photo by Prairie Nursery

    Used with permission, all rights reserved

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    Conoclinium coelestinum

    Also Known As

    • Eupatorium coelestinum
    • Blue Mistflower
    • Blue Shade Mistflower

    Plant type

    perennial

    size

    • H: 12"-36"
    • W: 12"-36"

    planting zones

    • 5a-10b

    More Options

    Conoclinium coelestinum plant details

    Conoclinium coelestinum is a broadleaf deciduous perennial with green foliage. In fall, spring and summer lavender flowers emerge. Attracts butterflies making it an excellent addition to pollinator gardens. Grows well with sun - mostly sun and even moisture - regular water. Does well in average, clay and gritty soil. A good option if you're seeking something humidity tolerant.

    CHARACTERISTICS OF Conoclinium coelestinum

    Plant type: perennial
    Plant family: asteraceae
    Foliage: deciduous green
    Mature size: 12 IN - 36 IN - wide, 12 IN - 36 IN - tall
    Flowers: lavender blooms in fall, spring and summer
    Uses: cottage garden, cutting garden, dried-arrangements, easy-to-grow, floriferous, long-blooming, native plant

    GROWING CONDITIONS for Conoclinium coelestinum

    USDA Zones: 5a - 10b
    Sun exposure: sun - mostly sun
    Watering frequency: even moisture - regular
    Resistant to: humidity
    Soil needs: average, clay and gritty

    Nursery contributed plant descriptions

    Eupatorium coelestinum, now known scientifically as Conoclinium, is a North American native called blue mistflower. The flowerheads of small, fluffy, bright violet-blue flowers are held in flat clusters on strong, upright, purple stems 18-36 inches tall from mid summer to late fall. The foliage is coarsely-toothed and bright green. Great in the middle to back of the border, in rain gardens, naturalistic or meadow settings and for erosion control. Pollinator magnet for butterflies and bees. An Ontario native.

    By: Phoenix Perennials and Specialty Plants Ltd.

    Neat as a pin fall blooming mistflower— a butterfly's best friend! The soft fuzzy flowers bloom early to late fall atop compact healthy foliage. Taking the place of fading summer perennials they combine satisfyingly with rosy to peach chrysanthemums, goldenrods and more. Also known as Hardy Ageratum.

    By: Select Seeds

    Mistflower (Eupatorium coelestinum) is an eastern U.S. native. Covered with blue-violet flowers from late summer until frost, it is low growing, creeps rapidly by rhizomes and makes a fine groundcover for shade. Also grows luxuriantly in full sun when provided with adequate moisture. Also commonly called Hardy Ageratum or Wild Ageratum. Hardy to Zones 5 - 10.

    By: Prairie Nursery

    Gardening facts about Conoclinium coelestinum plant

    How to Grow Conoclinium coelestinum

    • Sun Exposure

      • sun - mostly sun

    • Water Needs

      • even moisture - regular

    • Soil Needs

      • clay
      • average
      • gritty

    • Special Situation

      • humidity tolerant

    Features

    • Foliage Color

      • green

    • Flower Color

      • lavender

    • Wildlife

      • butterflies

    • Flower Season

      • spring
      • summer
      • fall

    • Foliage Season

      • deciduous

    See other plant types of Conoclinium for your garden

    Conoclinium dissectum

    aka Conoclinium greggii, Eupatorium greggii, Gregg's Blue Mistflower, Texas Ageratum

    Plant Type

    Perennial

    Zones

    7a-9b

    Size

    Height: 2'

    Width: 3'

    • sun
    • even moisture
    Photo of Conoclinium dissectum flower by Far South Wholesale Nursery
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    Conoclinium dissectum [white-flowered]

    aka Conoclinium greggii 'White', Conoclinium greggii [white-flowered], Eupatorium greggii 'White', Gregg's White Mistflower

    Plant Type

    Perennial

    Zones

    7a-10b

    Size

    Height: 2'

    Width: 3'

    • sun
    • regular
    Photo of Conoclinium dissectum [white-flowered] flower by Far South Wholesale Nursery
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    Conoclinium coelestinum 'Cori'

    aka Eupatorium coelestinum 'Cori', Eupatorium coelestinum 'Cory', Hardy Ageratum, Mist Flower

    Plant Type

    Perennial

    Zones

    6a-9b

    Size

    Height: 12"-24"

    Width: 12"-24"

    • sun - mostly shade
    • even moisture - regular
    Photo of Conoclinium coelestinum 'Cori' flower by Avant Gardens
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    Conoclinium coelestinum 'Wayside'

    aka Eupatorium coelestinum 'Wayside'

    Plant Type

    Perennial

    Zones

    6a-8b

    Size

    Height: 15"-18"

    Width: 18"-36"

    • sun - shade
    • even moisture - regular
    Photo of Conoclinium coelestinum 'Wayside' foliage by Obsessive Neurotic Gardener
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    Conoclinium betonicifolium

    aka Conoclinium betonicifolium var. betonicifolium, Eupatorium betonicifolium, Betonyleaf Mistflower, Betonyleaf Thoroughwort, Padre Island Mistflower

    Plant Type

    Perennial, Groundcover

    Zones

    8b-11

    Size

    Height: 18"-30"

    Width: 24"-36"

    • sun - mostly sun
    • regular
    Photo of Conoclinium betonicifolium flower, foliage, form by Almost Eden
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    +1 more Conoclinium
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