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    • Photo of Allium 'Firmament' flower by Far Reaches Farm

    Photo by Far Reaches Farm

    Used with permission, all rights reserved

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    Allium 'Firmament'

    Also Known As

    • Ornamental Onion

    Plant type

    bulb / corm / tuber

    size

    • H: 24"-30"
    • W: 6"-12"

    planting zones

    • 5a-9b

    More Options

    Allium 'Firmament' plant details

    Allium 'Firmament' is a broadleaf deciduous bulb / corm / tuber with green foliage. In summer purple flowers emerge. Attracts bees and butterflies making it an excellent addition to pollinator gardens. Grows well with sun and regular - low water. Drought tolerant once established. Prefers to be dry in summer. Does well in average, rich and well-drained soil. A good option if you're seeking something verticillium wilt resistant.

    CHARACTERISTICS OF Allium 'Firmament'

    Plant type: bulb / corm / tuber
    Plant family: amaryllidaceae
    Foliage: deciduous green
    Mature size: 6 IN - 12 IN - wide, 24 IN - 30 IN - tall
    Flowers: purple blooms in summer
    Uses: cutting garden, dried-arrangements

    GROWING CONDITIONS for Allium 'Firmament'

    USDA Zones: 5a - 9b
    Sun exposure: sun
    Watering frequency: regular - low
    Resistant to: deer and rabbit, verticillium wilt
    Soil needs: average, rich and well-drained

    Nursery contributed plant descriptions

    One of the big-head Alliums, this sports silvery dark purple flower heads the size of a baseball on stems up to 30" tall. Quite good and very hardy. These flower heads once spent are attractive when dried. Decent drainage in sun, these have the added bonus of being deer proof.

    By: Far Reaches Farm

    Gardening facts about Allium 'Firmament' plant

    How to Grow Allium 'Firmament'

    • Sun Exposure

      • sun

    • Water Needs

      • regular - drought tolerant

    • Water Needs

      • dry in summer

    • Soil Needs

      • average
      • well-drained
      • rich

    • Special Situation

      • verticillium wilt resistant

    Features

    • Foliage Color

      • green

    • Flower Color

      • purple

    • Wildlife

      • bees
      • butterflies
      • deer resistant
      • rabbit resistant

    • Flower Season

      • summer

    • Foliage Season

      • deciduous

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