I like The Garlic Store, Filaree Farms and Gourmet Garlic Gardens. Gourmet Garlic Gardens has samplers for warm climates which may limit you somewhat to softnecks.

Here is a link that might be useful: Gourmet Garlic Gardens

I ordered from Gourmet Garlic Gardens and The Garlic Store last fall and am very happy with the stock I received from both. Only one type is less than 80% up already, and those have to recover from having early shoots frozen; I do expect them to recover fully. In general this is substantially better than the local type I have grown for two years; those have pulled through with near 100% production).

Both sites are very helpful; I called both places and found them responsive with suggestions. I will be ordering from them both again this fall, adding some new varieties after reinvesting about 10% - 20% of this year's crop into next year's beds.

My favorite place is garlicsmith you have to call in your order and can acually talk to the person who grows it and they have a wide selection. They have a pretty good selection of artichoke and turban varieties that grow well in warm weather.
The Garlic Lady

Here is a link that might be useful: garlicsmiths

Thanks for the info. Can any of you recommend some garlics that would give me a range of tastes? Do they have dramatically different flavors, or are the differences subtle?

Wow! I just visited gourmetgarlicgardens.com and there is a lot to learn about garlics. It's obviously gowing to take me quite awhile to pick some varieties that will do well in my climate and have the range of tastes I would be interested in.

I found garlic gardening remarkably rewarding. It is nice to have a fall project in my garden, especially one where I barely have to tend it again after that (and yet I still manage to find excuses to spend time tending my garlic beds). I have gone from one variety a couple of years ago to 10 this year. I am sure I will add another half-dozen this fall. I grow hardnecks, and prefer the livelier flavors, but there are several somethings for everyone: have fun!

You should try Metechie, a purple stripe hardneck. I have grown about 12 varities hardnecks here and all did quite well.

I notice most people are saying "ordered in the fall." Not the best idea. The time to order is now, for fall delivery, so as to assure that 1. they have the variety you want, and 2. you are in line for the best bulbs. If you wait to the fall you may be disappointed.

JAMc, taste is really subjective when it comes to garlic. There are all sorts of variables, and the same variety might not taste the same even to you, one year to the next. So the best idea is to read up on descriptions and order a minimum quantity of those that sound appealing. Then make up your own mind as to which you like best.

In some cases, flavor differences are subtle. But more often there is a dramatic difference in overall taste; in the amount of heat; where & when the heat hits in the mouth; and how garlicy the variety tastes.

Sounds like the most important thing is drainage, so the bulb doesn't rot. Try putting 4" of sand in the bottom of each hole so the bulb doesn't sit in water during the wet season.