Allium - Millenium Ornamental Onion - Sugar Creek Gardens
Allium 'Millenium' Named 2018 Perennial of the Year! - Indiana Yard and Garden - Purdue Consumer HorticulturePurdue University Indiana Yard and Garden – Purdue Consumer Horticulture
Allium Millenium | Plants To Grow Plants Database by Paul S. Drobot
Allium 'Millenium' Ornamental Onion from Sandy's Plants