Allium obliquum is unique in offering a tall-stemmed species with sulphur yellow spheres. The foliage and stems are blue. Few plants can offer the unique flower forms of ornamental onions. Every garden should have Alliums. Plant in multiples of 3, 5, 7 or more. Don't fret when foliage starts to die back just before flowering. It's normal. Just trim the leaves.
Europe and Africa - Europe and Western Russia
Asia and the Pacific - Asia - China and Japan
Meadows and wooded slopes.