Globemaster
Allium 'Globemaster'
Also called ornamental onion and flowering onion
Globemaster blooms from May through June.
Mature size, hardiness zones, sun and the trait tags were checked against named botanical sources for this plant. The bloom months and water need on this page were not.
Growing Globemaster
Plant it in full sun. It prefers low water. It is hardy in USDA zones 5–9. Expect it to reach about 2.6 ft tall and 10 in wide at maturity, in roughly 1 year.
When to plant Globemaster
Globemaster is a fall-planted bulb: get it in the ground 6 to 8 weeks before the ground freezes, typically October or November across zones 5 to 9. It pays you back the following May to June.
Month-by-month timing for your zone is on the planting calendar: for the middle of its range, start with zone 7 in October.
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