You may not have asked me in particular for my advice, but in moderate climates, anyway, garlic must be planted in the fall - early enough to set forth some roots, but not so early that it starts to send forth green shoots thru the soil. You ask people in your area when they plant theirs.

If you plant in the spring, the season may not be long enough to produce a nice big head of garlic that consists of several well-developed cloves. Instead, you may get a smallish, single bulb.

In that case, you leave those small garlics over the winter. Next spring they will further develop into the multi-clove heads like you want.

As usual, soil must be good, with adequate organic matter. Keep well weeded (this is esp. important for garlic, according to the experts) and use a natural, organic fertilizer a few times during the growing season.

So, if you wanted to plant that garlic now, you may not get proper, full heads until late summer of 2009. At that time, you dig it up when the tops are partially yellow & dry, not completely dry. (It's too late then and they will fall apart & dry out, and may not store well.) Then place them out of the sun & rain for a couple of weeks. Then trim and store in cool to moderate place, but not in the fridge, of course, which will change its qualities.