Allium ‘Millenium’ packs a punch of late-summer color, bursting with compact, globe-shaped clusters of rosy-purple flowers atop tidy, upright stems. Unlike spring-blooming alliums, ‘Millenium’ fires up the garden in midsummer, drawing in butterflies, bees, and admiring glances while resisting deer and rabbits. Neat, clump-forming, and drought-tolerant, this low-maintenance perennial thrives in sunny borders, cottage gardens, and pollinator patches, where its glowing blooms stand strong for weeks.