Plant garlic in fall, once the soil has cooled but a few weeks before it freezes: about mid-October in zones 4 to 6, mid-October through November in zones 7 and 8, and mid-October into early winter in zones 9 and 10. NC State Extension gives the cloves at least 4 to 6 weeks to root before the ground freezes.
When to plant garlic, by zone
Each row is the planting window from the extension service for a region in that zone. Find your zone on the USDA hardiness zone map (our zone finder is coming soon), then read across.
About mid-October: two or three weeks after the first frost, with the soil down to 50 °F at 4 inches deep · SDSU ExtensionIn Minnesota: one or two weeks after the first killing frost (University of Minnesota).
October to early November · Iowa State University Extension
Mid- to late October · Penn State Extension, Allegheny County
Mid-October to early November · NC State Extension, Henderson County
Late October through November, and into December in the southern parts of the state · NC State Extension
Mid-October through the end of November: “plant by Thanksgiving” · UC Master Gardeners
Late fall through early winter · UF/IFAS Extension
Zones for each region are from the 2023 USDA map. A zone tells you how cold the winter gets, not when the first frost comes, so two places in the same zone can differ by a week or two. If your fall is early or late this year, move with it.
How to tell it’s time
The calendar is an average. Three signs tell you the right week in your garden:
- The first frost has come and gone. SDSU plants two or three weeks after the first frost; the University of Minnesota, one or two weeks after the first killing frost.
- The soil has cooled. SDSU says 50 °F at 4 inches deep is ideal. A soil thermometer costs a few dollars.
- The ground is still a month or more from freezing. NC State gives the cloves at least 4 to 6 weeks to settle in before the ground freezes.
Don’t rush it. Ohio State warns that planting too early grows more leaves above ground, and those leaves can be damaged over winter. Its ideal is for the first leaves to just reach the surface before freezing weather; in Minnesota, the shoots usually stay underground until spring. Either way, the roots are what matter in fall.
How deep to plant it
Plant each clove pointed tip up, flat base down. Most guides put the base of the clove about 2 inches below the surface and the cloves 4 to 6 inches apart. Colder places go deeper (SDSU plants 4 to 6 inches deep in South Dakota) and mild ones shallower (1 to 2 inches in Santa Clara County, California). Every source’s depth and spacing, and the steps, are in how to plant garlic.
Mulch it for winter
A thick layer of straw or shredded leaves keeps the soil from freezing and thawing over and over, which can push cloves out of the ground, and it holds back weeds in spring. How much:
- Zone 4: 6 to 8 inches of straw or leaves, once the soil has frozen (SDSU).
- Zones 3 to 6: 3 to 4 inches of leaves or straw (University of Minnesota); 4 to 6 inches of weed-free straw (Iowa State); 4 inches of clean straw (Ohio State). Ohio State says to use straw, not hay, which carries weed seed.
- Zone 7: 4 to 6 inches of straw or leaves after watering in (Henderson County, NC).
In spring, the University of Minnesota pulls the mulch back once hard freezes are over, so the soil warms, or leaves it in place to hold moisture and keep weeds down. To work out how many bags to buy for your bed, use the mulch calculator.
Hardneck or softneck?
- Hardneck garlic (Rocambole, Porcelain, Purple Stripe) grows a stiff flower stalk, the scape, and is the hardier type. Penn State’s Allegheny County gardeners find it grows best in western Pennsylvania because it is more cold-hardy.
- Softneck garlic (Artichoke, Silverskin) makes more cloves and braids easily. For Florida, UF/IFAS recommends softnecks such as Artichoke or Creole.
Can you plant garlic in spring?
Yes, but expect smaller bulbs. Iowa State lists early spring, late March to mid-April in Iowa, as a second planting time, and Ohio State says spring-planted cloves give smaller heads than fall-planted ones. If you missed fall, plant as soon as the soil can be worked.
When it will be ready
Fall-planted garlic is ready the next summer:
- North Carolina: May to June, when about half the leaves have turned brown (NC State).
- Santa Clara County, California: around mid-June, after the tops turn brown. Stop watering in May, when they start to yellow (UC Master Gardeners).
- Minnesota: late June to late July, when the lower leaves are brown and half or a bit more of the upper leaves are still green (University of Minnesota).
That is about eight to nine months from a fall planting. Dig too early and the bulbs are small; too late and the cloves split from the bulb (University of Minnesota).
Questions people ask
What month do you plant garlic?
October in most of the US. Cold areas (zones 4 and 5) plant in October, and warm areas (zones 8 to 10) from mid-October into November, December or early winter.
Is it too late to plant garlic in November?
Not in zones 7 to 10, where November is the main planting month. In zones 4 to 6 it is late if the ground is about to freeze; plant as soon as you can, or wait for spring and expect smaller bulbs.
Which end of the clove goes up?
The pointed tip goes up, and the flat base, where the roots grow, goes down. UC Master Gardeners in Santa Clara County say root end down, pointy tip up.
Can I plant garlic from the grocery store?
The University of Minnesota advises against it. Buy seed garlic of a variety suited to your climate from a garden center or grower.
How long does garlic take to grow?
Planted in fall, about eight to nine months: from October to a harvest between May and July, depending on the zone.
Sources
- SDSU Extension, Planting Garlic (Rhoda Burrows, updated 2021): mid-October, two or three weeks after the first frost; 50 °F soil at 4 inches; 4–6 in deep, 4–5 in apart; 6–8 in of mulch once the soil has frozen.
- University of Minnesota Extension, Growing garlic in home gardens: one or two weeks after the first killing frost; base of the clove 2–3 in deep; 6 in apart; 3–4 in of mulch; harvest late June to late July; avoid grocery-store garlic.
- Iowa State University Extension, When should I plant garlic?: October to early November, or late March to mid-April; 1 in deep; 4–6 in of straw.
- Ohio State University, Growing Garlic in the Garden (HYG-1627): too early means more top growth exposed to winter damage; 2 in deep; 4–5 in apart; 4 in of straw, not hay; spring planting gives smaller heads.
- Penn State Extension Master Gardeners of Allegheny County, Growing and using garlic: mid- to late October; stiffneck (hardneck) varieties do best there.
- NC State Extension, Henderson County Center, It’s Time for Garlic! (2025): mid-October to early November in zone 7; 3 in deep, 6 in apart; 4–6 in of straw or leaves.
- NC State Extension Gardener Plant Toolbox, Garlic: late October to November, into December in southern areas; at least 4–6 weeks to establish before the ground freezes; 2–3 in deep, 6–8 in apart; harvest May to June.
- UC Master Gardeners of Santa Clara County, Garlic: mid-October through the end of November; 1–2 in deep, 4–6 in apart; harvest around mid-June.
- UF/IFAS Gardening Solutions, Garlic: plant from late fall through early winter in Florida; softneck varieties such as Artichoke or Creole.
- Zones: USDA Plant Hardiness Zone Map (2023), and the ZIP-code listing from the PRISM Group, Oregon State University, prism.oregonstate.edu, accessed October 11, 2026.