How to Grow Garlic

Garlic Bulbs After Being Harvested From The Garden

First Things First:  Shelf Life

In the grocery store, garlic is already at or near the end of its life and is drying out. If it is packaged in plastic, it is suffocating; garlic has to breathe. Cloves of not-so-fresh garlic will be drieror in some cases moldyand will not have the flavor necessary to make your culinary creations shine. At its peak, garlic should be planted in the months of September through December, depending upon where you live, and then not harvested until about July, though young bulbs can be harvested in early spring before the cloves have developed (these are called rounds) and sautéed or otherwise used as you would green onions.

Top-Setting vs. Underground Garlic

No, we're not talking about black market garlic here. We are talking about growing flowering garlic as opposed to growing garlic plants that don't flower. Most of the garlic you find in the plastic packages in your grocery store is underground garlic, largely because it is easier to cultivate and harvest. Simply put, underground garlic does not flower and does not yield a tall stalk that gets in the way of harvesting. It also has a thicker, more protective papery covering that withstands the rigors of shipping and storage in full light in the produce aisle.


Top-setting garlic is also called hardneck. It produces a stalk with tiny bulb-lets, called bulbils, that will drop off and scatter if not harvested, some of which will grow again. Harvest the bulbils when you see them start to drop in order to control crowding; overcrowding will result in smaller bulbs. You can keep them to plant for next season's crop or give them away to your friends and family.

Top-setting varieties, such as our Music garlic, are said to have a richer and more pungent flavor with easier-to-peel cloves, although the individual cloves may not be quite as large. The cloves will also have a decidedly purplish cast to them, while the entire bulb may still have a white, papery wrapping. The top-setting garlic plants will produce the useable garlic underground, just as underground plants do. Some home gardeners prefer to have a visible signal as to the progress of their plants, which is why top-setting varieties are more popular with grow-it-youselfers and, as stated above, the flavor is said to be superior.

Underground garlic, like our Common Garlic, is called softneck and rarely produces a tall flowering stalk; however, a shorter stalk with leaves will be present. Producing large bulbs, usually with larger cloves than top-setting garlic, and wrapped in light-reflecting, protective white papery skins, these are the cloves normally mass-produced for the grocery store, the spice manufacturers, and the pickle-producers. Due to the thick, dry, papery wrapping, these cloves are also more difficult to peel and may require more per recipe than top-setting garlic.

If you are unsure of which garlic to plant, plant both. You can then determine which grows best in your climate, and you will be able to do your own taste-tests. Gourmet chefs will use both kinds in their kitchens and will grow both in their gardens.

A quick note: Top-setting garlic is also known as bolting garlic, while underground garlic is considered non-bolting.

When and Where to Plant Garlic

Harvesting_Garlic_PlantsGarlic can be planted in the spring, but the best results happen when it is planted in the fall and then harvested in late June through August, depending on where you live. For example, in far northern climates you will most likely be planting in late September or early October to beat the heavy frost, and then harvesting in July or August once the summer heat has matured your garlic crop.

Garlic's natural habitat is in cool, moist soil and the longer it is there, the better it will be.

Garlic, according to the experts, needs the wintertime cold and moisture to produce the best-tasting, most filled-out bulbs. Too little moisture and too little time in the ground will result in smaller, less plump-looking, dry bulbs, which also greatly affects the flavor and the shelf life.

Your soil should be deeply tilled to provide the best growing environment. Garlic prefers sandy, silty loam with exceptional drainage. If you live in an area with heavy clay content, you will either want to amend your soil or plant in a raised bed with amended soil at least 12 inches deep. Under ideal soil conditions, garlic roots can grow up to 3 feet deep. You will want to plant your garlic where it will receive at least 8 hours of full sunlight daily.

Which End Is Up?

Just about everything you read will tell you to plant the rounded (root end) down and the pointed (sprout end) up. Regardless of how the cloves are placed in the ground, the roots will grow from the root end and the sprouts will grow upward, toward the sun. What we can't see under the ground is that through the natural process of the soil's expansion, contraction, settling, etc., the clove will eventually right itself to the proper growing position. If you are planting a large crop, plant your garlic sets in the way that is easiest for you to do it.

Rows & Spacing

Garlic should be planted between 2 and 5 inches deep. Rows should be about a foot apart, allowing you the space to walk between them for weeding. The space between the individual plants only needs to be about 6 inches and since you are planting large-sized cloves and not seeds, you will not have to go back and thin them afterwards. About the weeds: cultivate the garlic until the snow starts falling or until winter sets in. This is when the roots are first becoming established and it is most important to reduce the competition for nutrients. Mow the weeds down as short as possible before the first shoots start to appear above the ground in early spring. Weeds should always be kept under the best control you can manage.


Garlic is a relatively heavy feeder; it will do best if the furrows are prepared with a high phosphorous fertilizer like Triple Superphosphate prior to planting. Growers have also reported exceptional results with all-natural fish emulsion plant foods, like Neptune's Harvest.  Bone Meal, which provides phosphorous and nitrogen, is then side-dressed in early and late spring, with fertilization being suspended in early June when the heat and moisture have signaled the cloves to start swelling.


Garlic needs a fair amount of water, as well. It's best to water very deeply and slowly every 10 days to 2 weeks, allowing the water to soak down at least a foot. If your area has particularly hot summers or has been experiencing severe drought, you may have to water once a week. Proper irrigation is most critical in early June as the cloves are swelling, helping them to maintain their high moisture content for better size and flavor.


Hanging_Garlic_To_DryThere is no above-ground indication that your bulbs are ready to harvest. You will have to dig down to take a look at the bulbs to see if they are ready. Getting them out of the ground takes a little practice, but it's fairly easy. Remember that the roots go deep, so you'll be cutting the roots off below the bulb. A sharp, hoe-type implement will work best. You can work each row by hoeing and cutting below the bulbs and then going back and pulling them from the ground, laying them all facing the same direction so the stalks don't become tangledparticularly important if you will be braiding and/or hanging your garlic plants to dry before storing. Harvesting when the ground is a bit dry is also easier and will result in less drying time. Drying should take place in a well-ventilated, shady, warm and dry area and it usually takes two to three weeks; this process further matures the bulbs, as well, and will greatly increase their shelf life. Some people set up drying racks or screens, while some braid the stalks and let them hang. Try to avoid bruising the bulbs in any way; this shortens the shelf life dramatically.


Fresh garlic should be stored in a dark, dry and well-ventilated space, protected from high humidity and freezing. Cooler temperatures combined with humidity will result in sprouting. Remember: garlic needs to breathe. Do not store in plastic. Garlic stored properly should last on the shelf until your next harvest, though this is not true of grocery store garlic, as the storage and distribution system will not accommodate garlic's ideal needs for long-term storage. It is also true that after 6 months the flavor may not be as pungent. Garlic can be dried and crushed into garlic powder. It can be stored in oil in the refrigerator for a few months, but it should be discarded if any sign of mold or yeast is seen on the container or on top of the oil. It can be pureed and then frozen by mixing one part garlic to two parts oil; it can be chopped and wrapped tightly in a freezer bag or plastic wrap and then frozenor you can freeze unpeeled garlic and remove the cloves as needed. Canning is not recommended due to the high temperatures required to kill botulism, while the airless environment created in oil is also ideal for growing this bacteria, which is why it should never be stored in oil at room temperature.

This may all sound really complicated, but the truth is that garlic is fairly easy to grow. We just wanted to give you as much information as possible. There is no comparison when it comes to homegrown fresh vs. grocery-store aged. None!

As always, we will appreciate any contributions of garlic-related stories, anecdotes or advice you may have. Follow us on Facebook and Twitter for all the latest news and discounts or to share your own gardening experiences.

Happy Gardening! From All of Us at Garden Harvest Supply

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