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    Allium

    Allium 'Globemaster'

    Allium Globemaster, commonly called Giant Onion, is perhaps the tallest of the ornamental onions. It is a bulbous perennial (large bulbs to 2-3‚ÄĚ diameter) which produces a basal rosette of grayish-green, strap-shaped leaves (to 18‚ÄĚ long). From the center of each basal rosette rises a thick, naked, 3-4‚Äô tall scape (stem) which is topped in late spring by a dense, globular, softball-sized, 5-6‚ÄĚ diameter cluster (umbel) of tiny, star-shaped, lilac-purple florets.

    Easily grown in average, medium, well-drained soils in full sun. Best sited in locations sheltered from strong winds. Plant bulbs 5-6‚ÄĚ deep and 9-12‚ÄĚ apart in fall. Leaves will wither and disappear from the garden shortly after bloom. Mature bulbs may be dug up in the fall, divided and replanted to increase size of a planting.

    Zone                           : 5 to 8

    Height                         : 3 to 4 feet

    Spread                        : 1 to 1.5 feet

    Bloom time                 : May

    Bloom description      : Deep lavender

    Sun                             : Full sun

    Water                          : Dry to medium

    Maintenance               : Low

    Suggested use            : Naturalize

    Flower                          : Showy

    Leaf                              : Fragrant

    Attracts                      : Butterflies

    Tolerate                     : Deer, Drought

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