Allium

Often known as, "Flowering onions", Allium is one of the tallest and most lordly onions out there. Spherical in shape and densely packed with hundreds of small, star shaped purple flowers, it is a petite beauty to behold. Named "His Excellency", "Globemaster" and the like, they have over ten varieties and manage impressive heights of up to five feet. They get along very well with lavender, astilbe, peonies and many other perennials.