Try to plant in well-drained fertile soil, such as loam, free of small rocks with some limestone and fertilizer added. The garlic will sprout and produce about 4 leaves about 4 to 5 inches high. In the spring, cultivate with a hoe each row to loosen the soil around the plants and to remove any debris deposited during the winter months. Once or twice throughout the season, Superphosphate is added and applied by sprinkling each row along side the plants. The superphosphate should be mixed and covered with soil to prevent direct contact with the plants.
Direct contact can cause plant damage.
The fertilizer is slowly washed into the area of the roots of the plant. This ensures bigger heads. I suggest that garlic not be planted in pots or a flower trays. The outcome being much smaller heads, as small as ping pong balls. Weed All that has to be done is to keep weeds out of garlic area periodically.