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Want to find the perfect plant for your landscape, or identify a mystery plant? Hartman Garden Center has an online Plant Finder to help you with your task. Remember, the best solution is always to talk to our plant and landscaping experts. Don’t hesitate to give us a call at (952) 443-2990.

    perennial

    Globemaster Ornamental Onion

    Allium 'Globemaster'

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    Globemaster Ornamental Onion (Allium 'Globemaster') at Hartman Companies

    Globemaster Ornamental Onion flowers

    Globemaster Ornamental Onion flowers

    (Photo courtesy of NetPS Plant Finder)

    Globemaster Ornamental Onion (Allium 'Globemaster') at Hartman Companies

    Globemaster Ornamental Onion in bloom

    Globemaster Ornamental Onion in bloom

    (Photo courtesy of NetPS Plant Finder)

    Plant Height:  12 inches

    Flower Height:  3 feet

    Spread:  12 inches

    Sunlight:  full sun 

    Hardiness Zone:  2

    Other Names:  Flowering Onion

    Ornamental Features

    Globemaster Ornamental Onion features bold balls of lightly-scented rose flowers at the ends of the stems from late spring to early summer. The flowers are excellent for cutting. Its sword-like leaves remain green in color throughout the season. The fruit is not ornamentally significant.

    Landscape Attributes

    Globemaster Ornamental Onion is an open herbaceous perennial with tall flower stalks held atop a low mound of foliage. Its relatively coarse texture can be used to stand it apart from other garden plants with finer foliage.

    This is a relatively low maintenance plant, and should only be pruned after flowering to avoid removing any of the current season's flowers. It is a good choice for attracting butterflies to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. It has no significant negative characteristics.

    Globemaster Ornamental Onion is recommended for the following landscape applications;

    • Vertical Accent
    • General Garden Use

    Planting & Growing

    Globemaster Ornamental Onion will grow to be about 12 inches tall at maturity extending to 3 feet tall with the flowers, with a spread of 12 inches. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 5 years. As this plant tends to go dormant in summer, it is best interplanted with late-season bloomers to hide the dying foliage.

    This plant should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This particular variety is an interspecific hybrid. It can be propagated by multiplication of the underground bulbs; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

     
     
    Hardiness Zone Plant Height Minimum Sunlight
    Characteristics
    Articulation  Garden 
    Applications
    Flowers  Texture  Plant Form  Attracts Wildlife 
    Ornamental Features
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