Allium nigrum L. is native to southern Europe, Asia and North Africa. Pictured below is a "pink form" (syn. Allium auctum Omelczuk) - Grown from seed, requiring 4-5 years to bloom from seed, this is one of the prettiest forms of the European melanocrommyum A. nigrum that I've grown. Very slow to increase but worth the wait. Photo by Mark McDonough.