US Grow Zones

When to plant garlic by zone

Last updated · Sources: NOAA NCEI 1991–2020 Climate Normals frost dates; timing rules described in our methodology

Allium sativum is a cool-season crop that is hardy to frost. Rule of thumb: plant cloves in fall, from your first fall frost to 3 weeks after it, so they root before the ground freezes but do not sprout above ground until spring; where the first frost comes after November 1, plant Oct 15–Nov 30.

SeasonCoolhardy to frost
Days to maturity240–270from fall planting
Soil temp50°F10.0°C, cooled to this at 4 in
Spacing4–6 inin the row

Garlic planting dates by zone

Each row uses the median 30%-risk frost dates of the major cities in that zone; rows marked * have no major city and use the median of NOAA stations in that zone instead. Frost dates vary a lot within a zone, so use your city page for local dates. In frost-free climates: Oct 15 – Dec 15.

Garlic planting windows by hardiness zoneGarlic planting windows by USDA zone. zone 1a: fall Aug 27–Sep 17; zone 1b: fall Aug 27–Sep 17; zone 2a: fall Sep 1–Sep 22; zone 2b: fall Sep 3–Sep 24; zone 3a: fall Sep 6–Sep 27; zone 3b: fall Sep 18–Oct 9; zone 4a: fall Sep 27–Oct 18; zone 4b: fall Oct 4–Oct 25; zone 5a: fall Oct 3–Oct 24; zone 5b: fall Oct 9–Oct 30; zone 6a: fall Oct 9–Oct 30; zone 6b: fall Oct 21–Nov 11; zone 7a: fall Oct 21–Nov 11; zone 7b: fall Oct 27–Nov 17; zone 8a: fall Oct 15–Nov 30; zone 8b: fall Oct 15–Nov 30; zone 9a: fall Oct 15–Nov 30; zone 9b: fall Oct 15–Nov 30; zone 10a: fall Oct 15–Nov 30; zone 10b: fall Oct 15–Nov 30; zone 11a: ff Oct 15–Dec 15; zone 11b: ff Oct 15–Dec 15; zone 12a: ff Oct 15–Dec 15; zone 12b: ff Oct 15–Dec 15; zone 13a: ff Oct 15–Dec 15; zone 13b: ff Oct 15–Dec 15JanFebMarAprMayJunJulAugSepOctNovDec1a*1b*2a2b*3a*3b*4a4b5a5b6a6b7a7b8a8b9a9b10a10b11a11b*12a*12b13a*13b*Start indoorsPlant outDirect sowFall cropFrost-free climate window · * estimated zone
Planting windows by zone, drawn from the table below. Zones marked * have no major city on this site and use NOAA station estimates.
ZoneMedian last frostStart indoorsTransplant / plant outDirect sowFall crop
1a*May 29———Aug 27 – Sep 17
1b*May 29———Aug 27 – Sep 17
2aMay 21———Sep 1 – Sep 22
2b*May 20———Sep 3 – Sep 24
3a*Jun 4———Sep 6 – Sep 27
3b*May 24———Sep 18 – Oct 9
4aMay 12———Sep 27 – Oct 18
4bMay 5———Oct 4 – Oct 25
5aMay 4———Oct 3 – Oct 24
5bMay 4———Oct 9 – Oct 30
6aMay 4———Oct 9 – Oct 30
6bApr 26———Oct 21 – Nov 11
7aApr 22———Oct 21 – Nov 11
7bApr 10———Oct 27 – Nov 17
8aApr 1———Oct 15 – Nov 30
8bMar 22———Oct 15 – Nov 30
9aMar 11———Oct 15 – Nov 30
9bFeb 12———Oct 15 – Nov 30
10aJan 26———Oct 15 – Nov 30
10bJan 27———Oct 15 – Nov 30
11aRareOct 15 – Dec 15
11b*RareOct 15 – Dec 15
12a*RareOct 15 – Dec 15
12bRareOct 15 – Dec 15
13a*RareOct 15 – Dec 15
13b*RareOct 15 – Dec 15

Growing tips

Related guides: which frost date to use · succession and fall planting.

Exact dates for your city

Popular: New York, Los Angeles, Chicago, Houston, Phoenix, Philadelphia, San Antonio, San Diego, Dallas, Jacksonville, Fort Worth, San Jose — or browse all cities by state.

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Garlic planting questions

When should I plant garlic?

In fall. Plant cloves from about your first fall frost to 3 weeks after it, when the soil at 4 inches has cooled to about 50°F. University extension services give similar timing: one to two weeks after the first killing frost (University of Minnesota), two to three weeks after it (South Dakota State), or about three weeks before the ground freezes (University of Vermont). Examples using the median frost dates of cities on this site: zone 4b (median first fall frost Oct 4): Oct 4 – Oct 25; zone 5b (median first fall frost Oct 9): Oct 9 – Oct 30; zone 6b (median first fall frost Oct 21): Oct 21 – Nov 11; zone 7a (median first fall frost Oct 21): Oct 21 – Nov 11; zone 8a (median first fall frost Nov 3): Oct 15 – Nov 30.

Is it too late to plant garlic?

Usually not until the ground freezes. Cloves planted toward the end of the window still root while the soil is workable; mulch them well. If you miss fall entirely, you can plant in early spring as soon as the soil can be worked, but spring-planted garlic tends to make smaller bulbs because it gets less cold exposure.

Why is garlic planted in fall instead of spring?

Garlic needs a period of cold (roughly 32–50°F for about two months) to form a bulb divided into cloves. Fall planting gives the cloves that cold naturally and lets them build roots before winter, which gives the biggest bulbs.

When do you plant garlic where winters are mild?

Where the first fall frost comes after November 1 (most of zones 8–9), plant Oct 15–Nov 30. Where frost is rare, plant Oct 15 – Dec 15 and consider chilling the cloves in the refrigerator for several weeks before planting so they bulb properly. This applies to cities such as Los Angeles, CA, San Diego, CA, San Francisco, CA.

How deep and how far apart should I plant garlic?

Plant cloves pointed end up, 2–4 inches deep and 4–6 in apart, in rows about 12–18 inches apart. After the ground starts to freeze, cover the bed with 4–6 inches of straw or shredded leaves.

When is garlic ready to harvest?

About 8–9 months after fall planting, usually early to mid summer. Dig the bulbs when about half the leaves have browned, then cure them in a dry, airy, shaded place for about two weeks.