The majestic Gladiator allium is a fall planted flower bulb that blooms from late spring into early summer. Like all alliums, Gladiator is best planted in clumps of 10 or more bulbs to create a stunning and unusual effect in the late spring garden. Gladiator alliums will produce sweet-scented globe-like flowers of up to 6 inches in diameter. Also, due to its impressive size and color, the Gladiator allium is excellent for either cut flower or dried flower arrangements.