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    • Photo of Gladiolus 'Allegro' flower by Old House Gardens

    Photo by Old House Gardens

    Used with permission, all rights reserved

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    Gladiolus 'Allegro'

    Plant type

    perennial, bulb / corm / tuber

    size

    • H: 3'-4'
    • W: 1'-2'

    planting zones

    • 8a-10b

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    Gladiolus 'Allegro' plant details

    Gladiolus 'Allegro' is a broadleaf deciduous perennial bulb / corm / tuber with green foliage. In spring red flowers emerge. Grows well with sun and regular water. Does well in well-drained soil. A good option if you're seeking something verticillium wilt resistant.

    CHARACTERISTICS OF Gladiolus 'Allegro'

    Plant type: perennial bulb / corm / tuber
    Plant family: iridaceae
    Foliage: deciduous green
    Mature size: 1 FT - 2 FT - wide, 3 FT - 4 FT - tall
    Flowers: red blooms in spring

    GROWING CONDITIONS for Gladiolus 'Allegro'

    USDA Zones: 8a - 10b
    Sun exposure: sun
    Watering frequency: regular
    Resistant to: verticillium wilt
    Soil needs: well-drained

    Nursery contributed plant descriptions

    An unusual red, light-years away from orange, ‘Allegro’ is a deep rose-ruby with smoky purple undertones. It’s also lavishly ruffled, as if trembling with intensity – or passion? In Italian its name means “quick, spirited, lively,” and this show-stopper definitely is. 4 feet tall, from Maine.

    By: Old House Gardens

    Gardening facts about Gladiolus 'Allegro' plant

    How to Grow Gladiolus 'Allegro'

    • Sun Exposure

      • sun

    • Water Needs

      • regular

    • Soil Needs

      • well-drained

    • Special Situation

      • verticillium wilt resistant

    Features

    • Foliage Color

      • green

    • Flower Color

      • red

    • Flower Season

      • spring

    • Foliage Season

      • deciduous

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