Yes, I do plant my garlic in the fall too. Five years ago I started letting some plants go to seed, then next year I planted the seeds. It takes three years to get a whole head of garlic from seed. If you plan your plantings every year you'll have a lot more garlic from seed. A note here: My garlic is from an organic garlic grower in British Colombia that told me that some garlic can not grow from seed. So make sure you have the right kind.