Garlic is one of my favorite crops to grow. It's a crop that doesn't take a lot of time or maintenance, but the payoff is huge. Who doesn't love fresh garlic? No one. I wouldn't trust someone who doesn't love garlic.
I order my garlic every year from Peaceful Valley. I typically grow both hardneck and softneck garlic. I like the scapes that the hardneck garlic provides, but I like to be able to braid my garlic for storage, like you do with softneck. Back in early October, I planted two beds of Music, a hardneck variety, and three beds of California Early White, a softneck variety. I planted an extra bed of California Early White, because I plan on harvesting one of the beds early before its bulb fills out to use as "green garlic." (I'm serious about my garlic, okay?)
Like I said, garlic doesn't require a lot of maintenance. I weed the beds fairly regularly. It likes to be mulched over the winter. It does require a little bit of fertilization, though, and that's what I spent this balmy, 78 degree President's Day doing.
My rule of thumb is to fertilize garlic three times: once in planting, once on Valentine's Day, and once on St. Patrick's Day. (I'm a little bit late this year, but that's alright.) Garlic likes a lot of nitrogen when it's still in its leafing stage, before it starts growing its bulb, so I use a 50-50 blend of worm castings and blood meal. Once I combine my fertilizers, I side dress each garlic plant with a small scoop of the mix and try to work it down into the soil an inch or two. I'll do this exact same thing again in a month, but then after that, I stop fertilizing and let nature do its thing. If you fertilize too late, it would encourage the plant to continue a vigorous leaf growth when you want it working on growing a bigger bulb.
As I keep saying, it's been a bizarrely warm winter, so I'm guessing that my garlic is going to be ready earlier than usual this year. I can typically harvest green garlic in April, scapes in May, and bulbs in June. If the weather keeps this current pattern going, I'll be about a month ahead of that schedule. If the bulbs start filling out early, I'll adjust my fertilization schedule. Good growing is all about watching what nature brings you and adapting.