Planting Garlic: When, How Deep, and How Far Apart

Plant garlic in fall, about one to two weeks after your first killing frost and a few weeks before the ground freezes, setting each clove pointed end up with its base 2 to 3 inches deep and 4 to 6 inches apart. That timing gives the cloves time to grow roots before winter. They stay mostly quiet underground until spring, then grow fast.

Garlic is one of the easiest crops a beginner can grow. You plant it once in fall, mulch it, and mostly leave it alone until early summer. The few choices you make at planting time decide whether you dig up fat, full heads or small, weak bulbs.

In our USDA Zone 7b garden, garlic usually goes in from mid-October into November. Your own window depends on your local frost dates, so plan around those.

Key Takeaways

• Plant cloves in fall, timed to your local frost and freeze dates.
• Pick large, healthy cloves of a type suited to your winters.
• Mulch well, feed in early spring, and harvest when about half the leaves have browned.

When Should You Plant Garlic in Your Climate?

The right planting time for garlic is mid-fall: shortly after your first killing frost, while the soil is still workable. Cold-winter gardens plant earlier, mild-winter gardens plant later, and late planters still have a spring option with smaller bulbs.

Fall Timing by Climate, Frost Dates, and Soil Conditions

Garlic builds its roots in fall and winter. By early spring, those roots support the quick leaf growth that leads to big bulbs. Planting at the right time lets roots form while keeping green shoots mostly underground until spring.

A good rule is to plant one to two weeks after your first killing frost. Here is how that tends to look across the country:

Climate	Usual planting window	Notes
Cold northern winters	Late September to mid-October	Ground freezes early; don’t wait long
Middle of the country, including Zone 7b	Mid-October into November	Our window for garlic
Mild Pacific and southern areas	October through November or later	Plant once soil cools

Hardiness zones describe winter low temperatures. They do not set your frost dates, and two towns in the same zone can have different first-frost days. Our planting zone and frost date lookup by ZIP code gives you your own local dates.

Check the soil before you plant. It should be moist but crumbly, never soggy. If you squeeze a handful and it drips or forms a sticky ball, wait a few days for it to dry.

A warm fall tempts many gardeners to wait. Stick to your normal schedule. If shoots poke up before a hard frost, a thick layer of straw mulch keeps them insulated.

What if You Missed the Fall Planting Window?

If the ground has not frozen yet, plant anyway. Late cloves still root in cool soil, and a thick mulch layer protects them.

If the ground is already frozen, you can plant in spring as soon as the soil can be worked. Spring garlic grows into smaller bulbs because it has less time to root before the weather warms. You still get a usable crop, and many gardeners enjoy pulling spring-planted garlic young as green garlic.

Store your seed cloves somewhere cool, dark, and dry until then. Toss any that turn soft or moldy.

When Does Garlic Need Chilling Before Planting?

Garlic needs a stretch of cold weather to split into separate cloves. Without enough cold, you may harvest a single round bulb with no divisions.

In most of the US, fall planting gives garlic all the cold it needs from winter itself. Gardeners in very mild areas, and anyone planting in spring, sometimes chill seed cloves in a paper bag in the refrigerator for several weeks before planting. Keep them dry in there, and plant soon after you take them out, because cold storage nudges cloves to sprout.

Choose Healthy Cloves and Prepare the Right Spot

Good garlic starts with clean, large cloves of a type suited to your winters, planted in a sunny bed with loose soil that drains well. Disease and pests ride in on bad seed stock, and soggy soil rots cloves over winter.

Should You Choose Hardneck or Softneck Garlic?

Hardneck garlic suits cold winters, and softneck garlic suits mild ones and stores longer. Many Zone 7b gardeners grow either type with success.

Feature	Hardneck	Softneck	Elephant garlic
Best climate	Cold winters	Mild winters	Wide range
Flower stalk (scape)	Yes	Rarely	Yes
Cloves per bulb	Fewer, larger	More, smaller	Few, very large
Storage life	Shorter	Long	Short
Braids well	No	Yes	No
Example types	Rocambole, Porcelain, Purple Stripe	Artichoke, Silverskin	One main type

Hardneck garlic gives you a bonus crop of scapes in late spring. Softneck garlic is what most stores sell, and it braids nicely.

Elephant garlic is a type of leek. It makes huge, mild cloves and needs more room in the bed.

What Counts as Seed Garlic?

Seed garlic is just garlic grown and sold for planting. You plant cloves; there are no true seeds involved. Each clove grows into one new bulb.

Buy from a garlic seed grower or garden supplier and choose types adapted to your climate. Look for firm heads with tight, papery skins. Skip any cloves with soft spots, mold, odd colors, streaks, or small yellowish nicks, which can mean mites.

Bigger cloves grow bigger bulbs. Plant your largest cloves and cook with the small ones.

Prepare a Sunny Bed with Well-Drained Soil

Pick a spot with full sun and soil that drains after rain. Garlic likes a pH between 6.0 and 7.0, so a soil test is a smart first step.

Work in compost or well-rotted manure a few inches deep. Avoid fresh manure, which brings weeds and harmful bacteria. Loosen the soil so bulbs can swell easily.

In heavy clay, use raised beds at least 10 to 12 inches tall. Our tips on starting your own garden as a beginner cover bed basics if this is your first plot.

Go easy on nitrogen in fall. Garlic does most of its growing in spring, and nitrogen added now tends to wash out of the soil before plants can use it.

How to Set Cloves in the Ground Step by Step

Planting garlic takes about an hour for a small bed: break the bulbs, mark your spacing, set each clove upright at the right depth, then cover and mulch. Here is the order we follow.

Separate Healthy Cloves and Keep the Skins On

1. Break the garlic bulbs into cloves a day or two before planting. Waiting longer lets the base dry out.
2. Pull gently so the flat bottom of each clove stays whole. That base is where roots grow.
3. Leave the papery skin on. It protects the clove in the soil.
4. Sort cloves by size and plant the biggest ones. Toss any that are soft, bruised, or moldy.

Set Planting Depth and Spacing Before You Dig

Marking rows first keeps spacing even and saves guesswork later.

Garlic type	Depth (base of clove)	Space between cloves	Space between rows
Hardneck or softneck	2 to 3 inches	4 to 6 inches	6 to 12 inches
Elephant garlic	3 to 4 inches	About 6 inches	12 inches

In raised beds, a simple grid of 6 inches by 6 inches works well. Crowded garlic makes smaller bulbs unless you give it extra water and food.

A dibber or a narrow trowel makes quick, even holes. Our guide to essential gardening tools for a sustainable garden shows the basics worth having.

Place Each Clove Pointed End Up

Set each clove in its hole with the flat root end down and the pointed tip up. The tip is where the shoot comes out.

A clove planted upside down will still try to grow, but it wastes energy turning around and often ends up smaller. Press each clove gently so it sits firmly at the bottom of the hole.

Cover, Water, and Mulch for Your Winter Conditions

1. Fill each hole with loose soil and press lightly.
2. Water the bed once so the soil settles around the cloves.
3. Spread mulch over the bed. Use 3 to 4 inches of straw or shredded leaves in cold areas. In mild areas, a lighter layer helps with weeds and moisture.

Pick straw that is free of weed seed. Mulch keeps the soil from freezing and thawing over and over, which can push cloves out of the ground.

Care for Your Plants Through Harvest and Storage

Growing garlic through spring and early summer means keeping weeds down, feeding early, watering steadily, and stopping water before harvest. Hardneck types also need their scapes snapped off.

Manage Spring Mulch, Watering, Fertilizer, and Weeds

Pull back heavy mulch once hard freezes are over so the soil warms. You can also leave a thinner layer to block weeds and hold moisture.

Feed with a nitrogen source, such as blood meal or a balanced fertilizer, when shoots appear. Feed again two to three weeks later. Skip nitrogen after the first week of May, since late feeding delays bulbs.

Give the bed about 1 inch of water a week if rain is short. Sandy soil needs more frequent watering. Stop watering about two weeks before harvest to protect the bulb skins.

Weed often. Young garlic can’t compete, so hand-pull or hoe shallowly to avoid nicking bulbs.

When Should You Cut Garlic Scapes?

Cut garlic scapes once they begin to curl. Removing them sends more energy into the bulb, and young scapes are tender and great in a stir-fry or pesto.

Snap or cut them near the top leaf. If you wait too long, they turn woody.

Watch for Rot, Onion Maggots, and Stunted Growth

Sign	Possible cause	What to do
Plants yellow and wilt; holes in bulbs	Onion maggots	Pull and destroy plants; rotate beds
Soft, rotting bulb base with white fuzz	Basal or white rot	Remove plants; plant elsewhere
Pale, thin plants with yellow tips	Low nitrogen	Feed in early spring
Weak, stunted plants after planting	Rotten seed cloves	Start with clean, firm cloves

Rotate garlic away from onion-family crops for several years. Rot spreads fast in wet, heavy soil, so good drainage prevents a lot of trouble.

How Do You Know When Garlic Is Ready to Harvest?

Garlic is ready when the lower leaves have turned brown and about half the upper leaves are still green. In most areas, that falls between late June and late July.

Dig one test bulb and cut it in half. If the cloves fill their skins, harvest the rest. Harvest too early and bulbs stay small; too late and the cloves split apart.

Lift, Cure, and Store Bulbs for Eating or Replanting

Loosen soil beside each plant with a garden fork, then lift the whole plant. Pulling by the stalk can snap it. Brush off big clumps of soil and avoid bruising the bulbs.

Hang or lay plants in a warm, dry, shady spot with good airflow for three to four weeks. They are cured when the necks are dry and the skins feel papery.

Trim stalks to half an inch to an inch above the bulb and clip the roots. Store bulbs in a dark, dry, airy spot. Set aside your biggest, healthiest bulbs for fall planting.

Start with Healthy Cloves and Your Local Planting Window

A strong garlic crop comes down to two things you control in fall: clean seed garlic and good timing. Plant firm, large cloves one to two weeks after your first killing frost, with the base 2 to 3 inches deep and 4 to 6 inches apart.

Mulch the bed for winter, feed early in spring, cut scapes once they curl, and dig when about half the leaves are brown. Save your best bulbs, and next fall you’ll plant from your own stock.

Frequently Asked Questions