How to Grow a Year’s Supply of Garlic

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Imagine always having fresh garlic on hand for cooking, roasting, preserving in flavorful oils, or even grinding into your own garlic powder. If you’ve ever considered growing garlic at home, you’ll find it surprisingly simple—and the payoff is well worth it.

Here are some tips for growing your own supply of garlic that will last an entire year.

1. How much garlic do you need

To have a year-round supply of garlic, you need to plant enough to grow your “eating garlic” and your “seed garlic.” Seed garlic is the garlic you’ll set aside at harvest time to plant that fall to become next year’s harvest.

Determining how many cloves to plant takes a little bit of math, but once you figure it out you’ve got an equation you can use year after year.

2. How to calculate how much garlic you need to grow

Here are the equations you’ll need to use:

Total # cloves to plant = desired # eating heads + (seed garlic: desired # eating heads / 4)
Total # heads to buy = Total # cloves to plant / 4

In other words, to determine how many cloves to plant in your garden this fall, you need to decide how many heads you want to have for eating.  Then, you need to plant enough to have that number of cloves again for next year’s seed garlic.

Since garlic is sold in heads, not cloves, you then do a quick calculation to determine how many heads to buy (we use the number 4 as the average number of cloves per head – it can vary by variety).

3. Choose garlic varieties

Did you know that there are at least 600 named varieties of garlic? That means the possibilities are endless when choosing your garlic variety.

Seed garlic can usually be found at your local gardening store, but it is also fun to ask other homesteaders and gardeners if they have seed garlic of differing varieties. You can trade or purchase garlic from them to mix things up. Try a few types to see how they grow, store, and taste.

There are also a variety of online sellers who offer seed garlic; be sure to read reviews and buy from a reputable company to get the best quality product.

4. Determine when to plant your garlic

Though garlic can be planted in early spring in warmer climates, most experienced gardening experts recommend planting it in the winter. When the garlic experiences winter frosts and freezes, it develops a strong root system that will help it rapidly expand into a head the next spring and summer.

The Farmer’s Almanac recommends planting garlic 6-8 weeks before the average first frost.  Use this handy tool to determine your first frost date if you don’t know it off-hand.

5. Prepare a location for planting your garlic

Garlic prefers full sun and sandy, well-drained soil. If your soil is wet or drains poorly, consider building a raised bed to prevent moisture from getting trapped and rotting the garlic over the winter.

6. Give the garlic space

Planting is easy – separate the heads of garlic into cloves and plant about 2 inches deep with the “pointy” end up.  You’ll need to plant garlic 4-6 inches apart, with rows spaced about 1 foot apart. 

For example, our rows of garlic are about 10 feet long, which means we can plant about 25 plants per row. This means we’ll need about five rows spaced one foot apart plus a border, so we need about a 10 x 6-foot area in our garden.

For raised beds, we recommend two beds, each about 3 feet wide. It is easier to reach the garlic in the middle for weeding and cutting garlic scapes.

7. Label your rows of garlic

If you are using a variety of garlic types, don’t forget to label your rows so you can keep track.

8. Watch garlic grow

Come spring, remove the mulch and, once some leaves have formed on the garlic, amend the bed with some compost or a light treatment of fertilizer.

After planting in the fall, cover your bed with a thick layer of mulch to protect the garlic and moisten the bed.  You can use hay or straw, and we have also had success with a nice thick layer of fall leaves.

9. Time to Harvest

By early summer, you will start to see your first harvest. Your garlic will be ready to harvest when the bottom of the leaves turns yellow. Your first harvest will be delicious garlic scapes.

You will start a regular cycle and never have to buy seed garlic again. You use your own garlic heads as seeds for the new batch.

• How to Harvest, Cure and Store Garlic
• How to Make Garlic Powder

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