While the traditional means of growing garlic is outside in the soil, garlic also grows readily in containers inside. As long as you plant the garlic cloves in 12-inch-deep containers to provide ample room for root growth and give the garlic sufficient light, the garlic will thrive indoors. Plant garlic in the house in containers for a productive harvest.
Separate the individual cloves that make up the garlic bulb. Plant each clove in a separate container.
Fill a 12-inch-deep container to the top with potting soil. Make an indentation in the center of each container for a garlic clove.
Place each garlic clove into the prepared container, with the pointy ends of the cloves facing up and approximately 1 inch below the surface of the potting soil. Cover the garlic cloves with soil and tamp the soil down firmly.
Water the garlic cloves immediately after you plant them.
Place the containers in a sunny location. If you do not have a location with direct sun, place the containers beneath a grow light and leave the light on for approximately six hours out of every 24-hour-period.
Water so that the potting soil remains evenly moist and watch for garlic shoots to grow from the soil within approximately one week. Trim these shoots from the garlic cloves, if you desire.
Harvest garlic bulbs when the foliage above the soil turns brown. Pull the bulbs out of the container gently.