Many seed suppliers sell them in the fall since that is planting time for them. Gurneys, Harris Seeds, Territorial Seed, even Burpee's lists them. Just Google Egyptian Onions.

Dave

Southern Seed Exchange has multiplier onions. The actually have two types... walking onions and potato onions (I think). Here is the link:

http://www.southernexposure.com/perennial-onions-multiplier-potato-onions-c-120_219.html

By your zoning, you must be near the coast. I am about 15 minutes north of Alabama beaches. Do multiplier do good for you? I have been thinking about ordering some for a 4x4 raised bed.