Allium ‘Millenium’ is a captivating perennial known for its globe-shaped clusters of rose-purple flowers that bloom in mid to late summer. With a height of around 12 to 18 inches (30 to 45 cm) and a spread of 12 to 24 inches (30 to 60 cm), it forms neat mounds of color in gardens and borders. Thriving in full sun, ‘Millenium’ allium showcases its vibrant blooms atop sturdy stems, attracting pollinators and providing a pop of color that elevates garden aesthetics. common name: ornamental onion