Sandi, I don't have a dehydrator and never even considered making garlic powder. We just pop a bulb out of the pantry, peel some cloves, and use it fresh. I might like to make some really fresh garlic powder and garlic salt. It is much trouble?
When will you start harvesting your hardneck? Do you harvest your softneck later? Have you tried to grow the "King" of the garlics, the Creole?