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How to Grow Garlic

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The short answer: grow garlic by planting individual cloves, pointed end up, in fall — roughly two to four weeks before your ground freezes, or October to November across most of the US. Set each clove 2 in deep and 6 in apart in loose, well-drained soil, mulch heavily, and let the cold winter trigger bulb formation. It grows through spring, you snap off the scapes on hardneck types in early summer, and you harvest firm bulbs in June or July when the lower leaves brown. From one clove you get one full bulb.

Garlic is one of the most forgiving crops once it is in the ground, but it runs on a schedule that trips up new growers: it is planted in fall and harvested the following summer, so it occupies a bed for eight or nine months. Get the timing, the variety and the spacing right and the rest is mostly patience. We do not test-grow the tools we rank; our picks come from aggregated owner reviews and expert consensus, explained in how we rank.

Hardneck vs softneck: pick the right type first

The single most important choice happens before you plant, because the two garlic families want different climates and behave differently in the kitchen.

TraitHardneckSoftneck
Best climateCold winters, USDA zones 3 to 7Mild winters, zones 7 to 10
Cold requirementNeeds a hard chill to bulb wellTolerates but does not require deep cold
ScapesYes — an edible bonus cropRarely
Cloves per bulb4 to 12, large, easy to peel10 to 20, smaller, in layers
Storage life4 to 6 months8 to 12 months
FlavorComplex, often spicierMilder, classic supermarket taste
BraidableNo — stiff central stalkYes

If you live north of roughly the Mason-Dixon line, grow hardneck: Rocambole types like 'German Red' and 'Spanish Roja' have the richest flavor, while Porcelain types like 'Music' and 'German Extra Hardy' give big, reliable bulbs that store better than most hardnecks. In the warm South and coastal West, grow softneck: 'California Early', 'Inchelium Red' and 'Silver White' bulb up without a hard freeze and keep for the better part of a year. Gardeners in the transition zone (6 to 7) can grow either, and many plant both to hedge.

Three-quarter view of a person harvesting ripe tomatoes into a basket in a backyard vegetable garden, in bright midday sun

When to plant garlic by zone

Garlic is planted in fall so roots establish before the ground freezes but the clove does not send up much top growth. Aim to plant two to four weeks before your soil freezes solid. In the far South, where soil never freezes, plant in late fall and, for hardnecks, buy pre-chilled cloves or refrigerate them for six to eight weeks first.

USDA zoneTypical planting windowHarvest window
3 to 4Late September to mid-OctoberLate July to August
5 to 6Early to late OctoberJuly
7Late October to mid-NovemberLate June to July
8 to 9November to early DecemberMay to June
10 (softneck, pre-chilled)December to JanuaryMay

Spring planting is a fallback, not a plan. Garlic planted in spring rarely gets enough cold to split into a proper multi-clove bulb and usually produces a single round instead. If you missed fall, plant as early as the soil can be worked and accept smaller results, or save the cloves and wait for the correct window.

Preparing the bed

Garlic is a heavy feeder that hates wet feet, so soil prep pays off directly in bulb size.

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How to plant garlic, step by step

  1. Break the bulb into cloves the same day you plant, keeping the papery skin on each. Do not separate them weeks ahead — they dry out.
  2. Sort by size and plant only the biggest. Large cloves make large bulbs. Set the small inner cloves aside for the kitchen.
  3. Plant pointed end up, flat root end down. Orientation matters; a clove planted sideways or upside down grows a bent, undersized bulb.
  4. Set the depth at 2 in in most climates (measured to the tip), or 3 to 4 in deep in zones 3 to 5 for extra winter protection.
  5. Space cloves 6 in apart in rows 10 to 12 in apart. Crowding is a leading cause of small bulbs. In a raised bed, a 6-by-6 in grid works well.
  6. Water in once to settle the soil, then mulch.

Mulching, watering and feeding

After planting, cover the bed with 3 to 6 in of straw, shredded leaves or other loose organic mulch. Mulch moderates soil temperature over winter, prevents freeze-thaw heaving that can push cloves out of the ground, and suppresses the spring weeds that steal nitrogen. In the coldest zones, mulch is not optional.

Watering follows a clear arc. Garlic needs little water over winter dormancy but wants consistent moisture — about 1 in per week — from the time green shoots appear in spring through the bulking period in late spring and early summer. Then, roughly two to three weeks before harvest, stop watering. Letting the soil dry as the bulbs mature firms up the wrappers and improves storage. Overwatering late in the season causes stained wrappers and rot.

Feed with a nitrogen-rich fertilizer when growth resumes in early spring and again about a month later, then stop feeding nitrogen once the plants begin to bulb (around late May) so energy goes into the bulb, not more leaves.

Three-quarter view of a person harvesting ripe tomatoes into a basket in a backyard vegetable garden, in soft early-morning light

Snapping the scapes

On hardneck garlic, a curling flower stalk called a scape shoots up from the center of the plant in early summer. Left alone, it straightens, forms a seed head and diverts energy that should be building your bulb — research and grower experience put the loss at roughly 20 to 30 percent of bulb size. Cut or snap each scape off once it has made one full loop, while it is still tender. This is a genuine second harvest: scapes are excellent chopped into stir-fries, pesto or scrambled eggs, with a gentle garlic flavor. Softneck varieties seldom scape, so there is nothing to remove.

Harvesting and curing

Timing the harvest is where many growers go wrong in both directions. Do not wait for all the foliage to die, and do not dig too early while bulbs are still small. Read the leaves:

Cure the whole plants in a shaded, well-ventilated spot — a garage, shed or covered porch, never direct sun — for two to four weeks, hung in bunches or laid on racks. The garlic is cured when the neck is dry and the outer wrappers are papery. Then trim the roots, cut the tops to about 1 in (or braid softnecks), and store in a cool, dry, dark place around 50 to 60°F. Do not refrigerate cured garlic; the cold triggers sprouting. Save your best, largest bulbs to replant next fall, and you never have to buy seed garlic again.

Common problems and fixes

ProblemLikely causeFix
Small bulbsLate planting, crowding, weed competition, or scapes left onPlant on time, space 6 in, weed diligently, snap scapes
Single round instead of a segmented bulbSpring planting or too little winter coldPlant in fall; use pre-chilled cloves in warm zones
Yellowing leaves in springNitrogen shortage or waterlogged soilFeed with nitrogen; improve drainage
Rotting bulbsPoor drainage or too much late-season waterRaised beds; stop watering before harvest
White fuzzy growth at base (white rot)Soil-borne fungus, often from grocery clovesRemove and destroy plants; do not replant alliums there for years; use clean seed garlic
Cloves heaved out of the ground in winterFreeze-thaw with no mulchReplant and mulch heavily

Garlic slots neatly into a crop rotation because it clears the bed by midsummer, leaving room for a fall crop of lettuce or spinach. For what to plant alongside and after it, see our companion planting chart and succession planting schedule. Everything else on growing from the ground up is at the seeds and vegetable growing hub.

Straight Answers

Frequently Asked

Can I grow garlic from a clove bought at the grocery store?

You can, but it is a gamble. Supermarket garlic is often a softneck variety bred for warm California growing conditions, so it may perform poorly in a cold climate, and much of it is treated with sprout inhibitors that slow or stop growth. It can also carry white rot or nematodes into your soil. For a few dollars more, seed garlic from a reputable supplier is disease-screened, named by variety, and matched to your climate. Grocery cloves are a fine experiment but a poor foundation for a real crop.

Why did my garlic bulbs come out small?

Small bulbs almost always trace to one of four causes: planting too late in fall so roots never established, spacing cloves too close together, letting weeds or grass compete for nitrogen in spring, or failing to snap off the scapes on hardneck types. Underwatering during the April-to-June bulking window shrinks bulbs too. Fix the timing and spacing first, because those two account for most disappointing harvests. Also plant only the largest cloves from each bulb; small cloves produce small bulbs.

Should I cut the garlic scapes off?

Yes, on hardneck varieties. The scape is the curling flower stalk that shoots up in early summer, and if you leave it the plant pours energy into a seed head instead of the bulb, shrinking your harvest by an estimated 20 to 30 percent. Snap or cut it off once it makes one full curl but before it straightens and toughens. The bonus is that scapes are edible and delicious, with a mild garlic flavor, so you get a second crop from the same plant. Softneck garlic rarely produces scapes.

How do I know when garlic is ready to harvest?

Watch the leaves. Each leaf corresponds to a papery wrapper layer around the bulb, and you harvest when roughly the bottom third to half of the leaves have browned while five or six green leaves remain up top. In most of the US that lands in June or July. Do not wait for all the leaves to die back, because by then the wrappers split and the bulb stores poorly. Lift one test bulb to confirm the cloves are plump and well-differentiated before digging the whole bed.

Do I need to cure garlic before storing it?

Yes, if you want it to keep. Curing is simply drying the whole plant, leaves and all, in a shaded, airy spot for two to four weeks until the neck is dry and the wrappers are papery. Skipping the cure leaves moisture in the neck that invites rot and cuts storage life to a few weeks. Properly cured hardneck garlic keeps four to six months and softneck keeps eight to twelve. Do not wash the bulbs or cure them in direct sun, which cooks them.