If you’ve never grown garlic, here’s the good news: it’s one of the most forgiving crops you can put in the ground, and it does most of its work while you’re not paying attention. Learning how to plant garlic in fall comes down to a few decisions: which type to buy, when to plant, how deep and far apart to set the cloves, and how to tuck them in for winter. Then you wait. The reward comes the following summer, when you pull up heads that taste nothing like the papery ones from the grocery store.
This guide walks you through the whole overwinter cycle, from picking cloves to curing bulbs, with notes on where your climate, soil, and variety change the advice.
Why Garlic Is Planted in Fall
Garlic needs a stretch of cold weather to form a proper bulb. Planted in autumn, the cloves grow roots before the soil freezes, rest through winter, then push up leaves in spring and size up their bulbs as days lengthen and warm. The long season is what produces large, well-divided heads.
In very mild climates where winters never get properly cold, garlic can still be grown, but you may need to choose varieties suited to warm winters. Some gardeners in those regions chill their seed garlic in the refrigerator for several weeks before planting. Check with a local extension office or experienced gardeners nearby to see what works in your area.
Step 1: Choose Hardneck or Softneck Garlic
Garlic comes in two broad types, and your climate should guide the choice.
Hardneck garlic
- Sends up a stiff central flowering stalk, called a scape, in early summer.
- Tends to be more cold-hardy, making it a common pick for regions with long, cold winters.
- Usually has fewer, larger cloves arranged in a single ring around the stalk.
- Often has a wider range of flavors, from mild to quite spicy.
- Generally doesn’t store as long as softneck.
Softneck garlic
- Has no stiff central stalk, so the necks are flexible and ideal for braiding.
- Usually does better in milder-winter areas, though it can be grown in colder ones with good mulch.
- Typically produces more cloves per head, in overlapping layers.
- Generally stores longer than hardneck.
If you’re unsure, try a few heads of each type. Garlic is inexpensive to experiment with, and you’ll quickly learn which performs best in your garden.
Buy seed garlic, not grocery-store garlic
Look for seed garlic from a nursery, garden center, or garlic grower. Grocery-store garlic may have been treated to prevent sprouting and often isn’t suited to your region. Seed garlic is sold as whole heads. Choose firm, plump heads with no mold or soft spots, and save the biggest cloves for planting, since large cloves tend to grow large bulbs.
Step 2: Time Your Planting
The general rule is to plant a few weeks before the ground freezes solid. That gives cloves time to develop roots, but not so much time that they send up lots of top growth before winter.
Because “a few weeks before the ground freezes” depends entirely on where you live, here’s how to translate it:
- Cold-winter regions: Planting often falls in early to mid autumn. Count back roughly four to six weeks from when your soil typically freezes.
- Moderate climates: Late autumn is often fine, as long as the soil is cool and workable.
- Mild-winter regions: Planting may happen in late autumn or even early winter, once the soil has cooled.
If a little green shoot shows up before winter, don’t panic. A few inches of growth is usually fine, especially under mulch. If you plant too late and the ground is already frozen, you can sometimes still plant if you can work the soil, but cloves have less time to root, so mulch generously.
Step 3: Prepare the Bed
Garlic spends roughly eight or nine months in the ground, so it’s worth getting the bed right.
Sun and drainage
Choose a spot with full sun, meaning at least six to eight hours of direct light. Drainage matters even more. Cloves sitting in waterlogged soil over winter are prone to rotting. If your soil is heavy clay, plant in raised beds or mounded rows to help water drain away.
Soil and fertility
Garlic prefers loose, fertile soil rich in organic matter. Before planting, work in a few inches of finished compost, and loosen the soil to about 8 to 10 inches deep so roots can grow freely. If you have a soil test, follow its recommendations for pH and nutrients rather than guessing. Without one, compost is a safe, general-purpose amendment.
Avoid planting garlic where onions, leeks, shallots, or garlic grew recently. These crops share pests and diseases, and rotating them to a new spot each year helps reduce problems.
Step 4: Separate and Plant the Cloves
Break the heads into individual cloves no more than a day or two before planting, keeping the papery wrapper on each clove. Discard any that are damaged, shriveled, or soft.
- Orient the clove correctly. Plant with the pointed tip facing up and the flat, root end facing down.
- Set the depth. A common recommendation is about 2 inches of soil over the tip of each clove. In colder climates, some gardeners plant a bit deeper, up to about 3 inches, for extra insulation. In heavy soil, shallower planting can help prevent rot.
- Space them out. Plant cloves about 6 inches apart in rows roughly 8 to 12 inches apart. Larger-clove varieties, especially some hardnecks, may appreciate a little extra room. Closer spacing produces smaller bulbs.
- Cover and firm. Fill the holes, pat the soil gently, and water lightly to settle everything in.
Label your rows, especially if you’re growing more than one variety. It’s surprisingly easy to forget what went where by summer.
Step 5: Mulch for the Winter
Mulch is what turns garlic from a gamble into a nearly effortless crop. A layer of mulch moderates soil temperature, reduces damage from freezing and thawing cycles, holds moisture, and suppresses weeds in spring.
Good options include shredded leaves, straw, or similar loose organic material. Whichever you choose, keep it clean and free of weed seeds. Apply a layer of about 3 to 6 inches after planting. In colder regions, lean toward the thicker end. In milder or wetter climates, a thinner layer is wiser, since too much damp mulch can encourage rot or shelter slugs.
Wait until the ground has cooled before mulching if your autumn is warm, so you don’t hold in heat. In spring, shoots will push right through the mulch. If the layer is very thick and shoots seem to struggle, pull some aside, but leave a layer in place to control weeds and keep moisture steady.
Step 6: Care Through Winter and Spring
Winter
There’s very little to do. If you get a dry spell and the soil isn’t frozen, a light watering is fine, but most gardeners in rainy or snowy regions don’t need to water at all. If frost heaves push cloves toward the surface, gently press them back in and add more mulch.
Spring
When growth takes off, garlic becomes a hungry plant. Many gardeners side-dress with a nitrogen-rich fertilizer or compost in early to mid spring, when leaves are actively growing. Follow the product’s directions, and stop feeding by late spring, since bulbs are sizing up and extra nitrogen can reduce bulb quality.
Water regularly during spring growth, aiming for about an inch per week from rain or irrigation if conditions are dry. Keep beds weeded, because garlic competes poorly with weeds.
Scapes
If you planted hardneck garlic, a curling scape will appear in late spring or early summer. Snap or cut it off when it has made one full curl. Removing scapes sends more of the plant’s energy into the bulb, and the scapes themselves are delicious in stir-fries, pesto, and scrambled eggs.
Step 7: Know When to Harvest
Harvest timing varies by variety, climate, and planting date, but in many regions garlic is ready from early to mid summer. Don’t rely on the calendar alone. Watch the leaves instead.
- Stop watering about two weeks before you expect to harvest, if the weather allows, so bulbs can begin to dry.
- When the lower leaves have turned brown but five or six upper leaves are still green, it’s usually time to check.
- Dig one test bulb. The head should be full, with cloves filling out the wrapper.
Each green leaf corresponds to a wrapper layer around the bulb. Harvest too early and the bulbs will be small with thin wrappers. Wait too long and the head may split open, exposing cloves and shortening storage life.
Loosen the soil with a garden fork and lift the bulbs rather than pulling them by the stem, which can tear the neck. Brush off loose soil, but don’t wash them.
Step 8: Cure and Store Your Garlic
Curing dries the wrappers and necks so garlic keeps for months. Bundle plants or lay them in a single layer in a shaded, dry, well-ventilated spot out of direct sun. Leave the leaves and roots attached. Curing typically takes two to four weeks, depending on humidity. Garlic is cured when the necks are fully dry and the outer wrappers feel papery.
Then trim the roots and cut the stems to an inch or so, or leave softneck stems intact for braiding. Store in a cool, dry place with good airflow. Softnecks generally keep longer than hardnecks, so eat your hardneck garlic first.
Set aside your best heads for replanting. Garlic grown in your own garden gradually adapts to your conditions, which is one of the quiet pleasures of growing it year after year.
Common Problems to Watch For
- Rotting cloves: Usually caused by poorly drained soil or excessive moisture. Raised beds and shallower planting in heavy soil help.
- Yellowing leaves in spring: Can point to cold stress, too little nitrogen, or overly wet soil. Consider your conditions before adding anything.
- Small bulbs: Often caused by crowding, weed competition, small cloves, or dry spells during bulb formation.
- Disease issues: Rotate your planting location each year and start with healthy seed garlic.
A Simple Fall Planting Checklist
- Choose hardneck or softneck garlic based on your winter climate.
- Buy healthy seed garlic and save the largest cloves.
- Plant a few weeks before the ground freezes in your area.
- Set cloves pointed end up, about 2 inches deep and 6 inches apart.
- Mulch with 3 to 6 inches of clean leaves or straw.
- Feed and water in spring, and remove hardneck scapes.
- Harvest when lower leaves brown but several upper leaves remain green.
- Cure for a few weeks, then store in a cool, dry place.
Once you’ve planted your garlic and tucked it under its blanket of mulch, the hardest part is over. Winter does the rest, and next summer you’ll have a harvest worth the wait.