2018 Perennial Plant of the Year! Millenium Allium, a truly impressive hybrid Ornamental Onion from Mark McDonough considered to be the best available in years. Compact upright clump of glossy, thick, green leaves with 5cm (2″) rose-purple ball clusters appearing just above the foliage on strong stems in mid to late summer. Easy to grow. Best in full sun. Deer and rabbit resistant. Leaves have a slight onion smell when crushed. Flowers are attractive to bees and butterflies. Grows 40-50 cm (18-20″) tall and 30cm (12″) wide. Zone 5.