November is the last time available for getting garlic in the ground for the year (depending on the growing season for your area). Garlic grows well in container gardening also.
Below are some of my favorite resources.
Planting Garlic [Martha Stewart Video]
demo on how to plant garlic
Cooperative Extension Office [Locator Map]
a wealth of gardening information
Growing Garlic Article [Mother Earth News]
plant, grow, harvest garlic + tips on pest prevention and garlic types to try