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FIRST IMPRESSIONS: Easily grown dry to medium moisture soils that must be well-drained. Prefers full sun, but will succeed in part shade. Tolerates a wide range of soils, Non-invasive due to low fertility. Foliage grows 6-8″ tall, with flower stems rising 15-20″ above from July to August with purple flowers. Deer and rabbit resistant, but very attractive to butterflies and pollinators.

HABITAT & HARDINESS:This is a cultivar and so is not found in the wild.

This cultivar is hardy in USDA Zones 5-8.

PLANT DESCRIPTION: Allium ‘Millenium’ is a captivating ornamental onion cultivar known for its stunning globes of rosy-purple flowers and architectural presence in the garden. Belonging to the Amaryllidaceae family, this hybrid perennial is a clump-forming plant that reaches a mature height of around 12 to 18 inches. The standout feature is the dense, spherical flower heads that appear in mid to late summer, creating a burst of color and texture. Each flower head is composed of numerous star-shaped blossoms that form an eye-catching ball of bloom. ‘Millenium’ boasts strappy, upright, green foliage that remains attractive throughout the growing season, providing an excellent contrast to the vibrant flowers. This cultivar is prized for its ability to attract pollinators and its resistance to pests and diseases, making it a reliable and visually striking addition to perennial borders and pollinator gardens.

CULTURAL & MAINTENANCE NEEDS: Allium ‘Millenium’ is a hardy and adaptable perennial that thrives in full sun to partial shade. It prefers well-draining soils and is tolerant of a range of soil types, including sandy and clayey soils.

This cultivar is relatively low-maintenance, requiring moderate watering and well-drained soil to prevent bulb rot. ‘Millenium’ is known for its long bloom period, providing gardeners with a prolonged display of color from midsummer well into the fall. Deadheading spent flowers can promote continuous blooming and prevent self-seeding, which can be beneficial in controlled garden spaces. Additionally, ‘Millenium’ has a non-invasive nature, making it a well-behaved and reliable choice for gardeners seeking a long-lasting, low-maintenance ornamental onion.

LANDSCAPE USES: With its compact stature and upright habit, ‘Millenium’ is well-suited for perennial borders, providing a striking focal point among other garden companions. Its unique flower form also makes it an excellent choice for cut flower arrangements, bringing its vibrant allure indoors. Additionally, this Allium variety is a pollinator magnet, attracting bees and butterflies to the garden. ‘Millenium’ is easy to grow, thrives in full sun, and is relatively low-maintenance, making it a valuable addition to a variety of garden styles, from formal gardens to cottage landscapes.

COMPANION & UNDERSTUDY PLANTS: Companion plants include, Nepeta faassenii ‘Walker’s Low’; Achillea millefolium; Perovskia atriplicifolia; Liatris spicata; Salvia nemorosa ‘May Night’; Agastache foeniculum; Panicum virgatum; Calamagrostis x acutiflora ‘Karl Foerster’

Understudy plants include, Allium lusitanicum ‘Summer Beauty’ and Allium cernuum may be suitable substitutes if Allium ‘Millenium’ is not available.

TRIVIA: Voted 2018 Perennial Plant of the Year by The Perennial Plant Association.

Phytoremediation: