Allium

Plant in full sun or light shade in any soil provided it is well-drained. They are very effective both in the wild garden or in the border where they will lengthen the season for flower bulbs. For best effect Alliums should be grown in clumps of at least 3-5 bulbs or use them as individual accents in the border. Bulbs may be left undisturbed for years and should be lifted and separated only when they become too crowded. Plant bulb in a hole 3 times its own height.