Millenium Ornamental Onion — Allium 'Millenium'
Millenium Ornamental Onion (Allium 'Millenium') is one of the finest summer-blooming perennials available, producing a long-lasting and eye-catching display of perfectly round, rosy-purple flower globes that float above lush, glossy green foliage from mid to late summer. Each bloom is composed of dozens of tiny star-shaped flowers packed into a perfect sphere, creating a bold, architectural effect in the garden that is irresistible to butterflies, bees, and other pollinators. Naturally deer and rabbit resistant, Millenium is an exceptionally easy-care perennial that thrives in full to part sun with well-drained soils and is remarkably drought-tolerant once established — making it a superb choice for low-maintenance borders, pollinator gardens, and rock gardens. Hardy to Zone 4.
Type: |
Perennial |
Origins: |
Northern Hemisphere |
Height: |
1' - 1.5' |
Spread: |
1' - 1.5' |
Spacing: |
1' |
USDA Hardiness Zone: |
4 - 8 |
Culture: |
Full Sun, Part Sun |
Bloom Color: |
Purple |
Season of Interest: |
Summer |
MAINTENANCE NEEDS: Low Maintenance. Drought-tolerant once established. Avoid overwatering — bulb rot occurs in poorly drained soils. Watch for mildew, rust, and leaf spot.
LANDSCAPE USES: Accents or Group Plantings, Borders, Woodland Gardens, Naturalized Areas, Rock Gardens, Groundcover, and Containers.
COMPANION PLANTS: Switchgrass, Russian Sage, Stonecrop
*As plants have ranges in appearance they may not appear as the images shown.