Allium caeruleum Azureum Blue Drumstick - 20 flower bulbs 20 Allium caeruleum "Blue Drumstick" flower bulbs These are small bulbs - but don't let their size fool you ~ each will produce a beautiful blue flower! One of the few TRUE BLUE flowers! Hardy in zones 4-8; Plant in the fall or early winter ~ blooms in the late spring or early summer CANNOT SHIP TO IDAHO OR ANY OF THE 5 FOLLOWING COUNTIES IN WASHINGTON: Adams, Benton, Franklin, Grant and Klickitat.