it looks like what you have there are garlic bulbs that are now sprouting. if you leave them as they are, you will have a bunch of small bulbs with tiny cloves of garlic. if you want a crop from the existing garlic i would dig them up, and separate the cloves, and replant them asap. have the area prepped first before you dig them up. you will get much better bulb size next summer having them growing properly spaced apart. if they aren't full size bulbs next summer, they will be the following year. i am assuming they will go dormant during your winter. water them in when you replant, and i expect they will be fine.
keith
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