Gladiator
Allium 'Gladiator'
Also called ornamental onion and flowering onion
Gladiator blooms from May through June.
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Growing Gladiator
Plant it in full sun. It prefers low water. It is hardy in USDA zones 4–8. Expect it to reach about 3.6 ft tall and 8 in wide at maturity, in roughly 1 year.
When to plant Gladiator
Gladiator is a fall-planted bulb: get it in the ground 6 to 8 weeks before the ground freezes, typically September or October across zones 4 to 8. 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 6 in September.
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