How to grow garlic
Plant in fall, harvest next summer. Here is each step, in order.
Your winter: . Change
Choose and buy your garlic Now
Jun to OctJun to OctJun to Oct
- Frozen hard. Hardneck is the safer choice. Some softnecks, such as Inchelium Red, do well in all but the coldest gardens.
- Frost, then thaw. The picker matches one to your kitchen.
- Rare frost. Choose Artichoke, Silverskin or Creole garlic.
- Don't plant grocery-store garlic. It may be treated so it won't sprout, and it can bring disease into your soil. Buy seed garlic from a garlic grower, seed catalog or nursery.
- For a 4 by 8 ft bed in four rows, buy about 1.5 lb of hardneck or 1 to 1.25 lb of softneck, twice that on a 6-inch grid. Ask the seller whether the stock is free of white rot and bloat nematode.
- When it arrives, set aside any bulb that is soft, moldy or bruised. Keep the rest whole in the coolest dry room you have, ideally 50 to 60°F, not the fridge.
- Rare frost. Where frost is rare, a few weeks in the fridge before planting can help cloves sprout, but never for months.
- Sold out? Local nurseries, garden centers and farmers markets often have seed garlic in September and October.
Sources
- Step 1. Penn State Extension, Growing and Using Garlic; University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; Colorado State University Extension, Tri River Area, Fall Planting: Garlic in Western Colorado (2025); University of Vermont Extension, It's Time to Plant Garlic! (2023); Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; University of Georgia Extension, Garlic Production for the Gardener (C854); UF/IFAS Gardening Solutions, Garlic; LSU AgCenter, Garlic in the Garden; UC Marin Master Gardeners, UC ANR, Garlic (grow sheet); UC Master Gardener Program of Contra Costa, UC ANR, Garlic, Love It or Leave It (2024); Texas A&M AgriLife Extension, Travis County, In Austin's October Vegetable Garden (2023); NC State Extension, Lee County Center, Growing Garlic in the South (2022); UF/IFAS Extension Pasco County, Growing Garlic in Florida (2026)
- Step 2. Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; Rutgers NJAES Cooperative Extension, FS1233: Growing Garlic in the Home Garden; University of Vermont Extension, It's Time to Plant Garlic! (2023); Colorado State University Extension, El Paso County, Year Round Gardening: It's Time to Plant Garlic (2018); US EPA, Code of Federal Regulations (govinfo.gov), 40 CFR 180.175 Maleic hydrazide; tolerances for residues; US EPA, Code of Federal Regulations (govinfo.gov), 40 CFR 180.1 Definitions and interpretations (commodity table); University of Maryland Extension, Growing Garlic in the Home Garden; WSU Extension, Skagit County Master Gardeners, Gearing Up for Garlic Planting Season (2025, Laura Kuhn); Oregon State University Extension, Garlic for the Home Garden (FS 138, archived and marked out of date); LSU AgCenter, Garlic in the Garden; Cornell Plant Disease Diagnostic Clinic, Diseases of Garlic: Various Pests; Penn State Extension, Growing and Using Garlic; University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; University of Minnesota Extension, Growing garlic in home gardens; UC Marin Master Gardeners, UC ANR, Garlic (grow sheet); Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); UMass Extension Center for Agriculture with University of Maine Cooperative Extension, Growing Garlic
- Step 3. A 4 by 8 bed in four rows is 32 ft of row, 64 cloves. One lb of seed garlic plants 20 to 25 ft of row at 6 inches on average. Softneck runs 50 to 70 cloves per lb, so 64 cloves take 1 to 1.25 lb (Sow True Seed). A 6-inch grid holds 4 cloves per sq ft, 128 in all. Sow True Seed, How Much Seed Garlic Do I Need? (seed company, practical sizing only); Penn State Extension, Growing and Using Garlic; Utah State University Extension, Garlic in the Garden; LSU AgCenter, Livingston Parish, Growing Garlic (2015); Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); UC Master Gardener Program of Contra Costa, UC ANR, Garlic, Love It or Leave It (2024); University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; Cornell Plant Disease Diagnostic Clinic, Diseases of Garlic: Various Pests; UNH Cooperative Extension, Growing Garlic in New Hampshire; University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); South Dakota State University Extension, Planting Garlic
- Step 4. University of Georgia Extension, Garlic Production for the Gardener (C854); Rutgers NJAES Cooperative Extension, FS1233: Growing Garlic in the Home Garden; Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; University of Maine Cooperative Extension, Bulletin #1206, Blue Mold of Garlic; University of California ANR, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); Texas AgriLife Extension Service, Garlic (production sheet), Dr. Joe Masabni; Johnny's Selected Seeds, Garlic growing guide (seed company, practical arrival point only); USDA SARE project report, University of Minnesota, On farm evaluations of novel methods to increase garlic marketable yield (ONC22 to 115); University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; HortScience abstract via phtnet.org, Low-temperature storage of garlic for spring planting (Volk, Rotindo and Lyons, HortScience 39:571 to 573, 2004), abstract; UC Master Gardener Program of Contra Costa, UC ANR, Garlic, Love It or Leave It (2024); LSU AgCenter, Garlic in the Garden; University of Arizona Cooperative Extension, Yavapai County, Backyard Gardener #160: Garlic (2024); Texas A&M AgriLife Extension, Travis County, In Austin's October Vegetable Garden (2023); The Scientific World Journal, Duration of Low-Temperature Storage, Clove Topping and Gibberellic Acid on Emergence, Yield and Yield Components of Garlic (Desta, Woldetsadik, Mohammed and Tena, 2022); UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage
- Step 5. WSU Extension, Skagit County Master Gardeners, Gearing Up for Garlic Planting Season (2025, Laura Kuhn); Colorado State University Extension, El Paso County, Year Round Gardening: It's Time to Plant Garlic (2018); Texas A&M AgriLife Extension, Travis County, In Austin's October Vegetable Garden (2023)
Prepare a sunny, well-drained bed Now
SepSepSep
- Choose your sunniest spot, with at least 6 hours of direct sun and 8 if you can, where water never stands in winter or spring.
- On heavy clay or wet ground, build a raised bed 10 to 12 inches high.
- Loosen the soil 8 inches deep and mix in about an inch of finished compost.
- Test the soil if you can. If the pH is below 5.8, add the lime the report suggests. With no test, mix in 1.25 to 2 cups of 10-10-10 per 4 by 8 bed.
- Skip any spot that grew garlic, onions, leeks, shallots or chives in the last 3 to 4 years, and clear out perennial weeds first.
Sources
- Step 1. UMass Amherst Center for Agriculture, Food, and the Environment (Home Lawn and Garden), Growing Garlic: Getting Started; University of Maryland Extension, Growing Garlic in a Home Garden; Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); Rutgers NJAES Cooperative Extension, FS1233: Growing Garlic in the Home Garden; West Virginia University Extension, Growing Garlic (WV Garden Guide); Clemson Cooperative Extension, Home & Garden Information Center, Onion, Leek, Shallot, & Garlic (HGIC 1314); New England Vegetable Management Guide (New England land-grant extension), Garlic; UNH Cooperative Extension, Growing Garlic in New Hampshire; University of Georgia Extension, Garlic Production for the Gardener (C854); Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); Alabama Cooperative Extension System, Horticulture Notes: Add Garlic to Your Garden
- Step 2. Oregon State University Extension Service, Fall is the best time to plant garlic in Oregon; NC State Extension, Pender County Center, Time to Plant Onions and Garlic; Cornell Cooperative Extension, St. Lawrence County, Time to plant garlic!; Oregon State University Extension, Garlic for the Home Garden (FS 138, archived and marked out of date)
- Step 3. University of Georgia Extension, Garlic Production for the Gardener (C854); Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; South Dakota State University Extension, Planting Garlic; UCCE Master Gardeners of Tuolumne and Calaveras Counties, UC ANR, Planting Garlic (Wendy Kubow); University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); NC State Extension, Pender County Center, Time to Plant Onions and Garlic; West Virginia University Extension, Growing Garlic (WV Garden Guide); Utah State University Extension, Garlic in the Garden; University of Minnesota Extension, Growing garlic in home gardens; University of Vermont Extension, It's Time to Plant the Garlic (Master Gardener intern article)
- Step 4. 2 to 3 lb (4 to 6 cups) of 10-10-10 per 100 sq ft. A 4 by 8 bed is 32 sq ft. University of Minnesota Extension, Growing garlic in home gardens; University of Georgia Extension, Garlic Production for the Gardener (C854); Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); Texas AgriLife Extension Service, Garlic (production sheet), Dr. Joe Masabni; UNH Cooperative Extension, Growing Garlic in New Hampshire; UMass Amherst Center for Agriculture, Food, and the Environment (Home Lawn and Garden), Growing Garlic: Getting Started; University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; University of Maryland Extension, Fertilizing Vegetable Gardens; Utah State University Extension, Selecting and Using Inorganic Fertilizers
- Step 5. West Virginia University Extension, Growing Garlic (WV Garden Guide); Montana State University Extension, Growing Garlic in Montana (MT199904AG); Rutgers NJAES Cooperative Extension, FS1233: Growing Garlic in the Home Garden; Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); South Dakota State University Extension, Planting Garlic; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); UC Davis Vegetable Research and Information Center, Garlic (Home Vegetable Gardening); UC Statewide IPM Program, Integrated Weed Management, Onion and Garlic (Pest Management Guidelines); University of Illinois Extension, Growing Great Garlic
Plant the biggest cloves Now
Oct to NovOct to NovOct to Dec
- Frozen hard. One to two weeks after your first hard frost, a few weeks before the ground freezes.
- Frost, then thaw. From late September to the end of November.
- Rare frost. From October into early December.
- Frozen hard. Cloves need a few weeks to root before the ground freezes. Don't wait until the last minute.
- Frost, then thaw. Cloves need a few weeks to root before hard cold. Don't wait until the last minute.
- On planting day, break the bulbs into cloves. Plant the biggest, firmest ones, skin on, and cook with the rest.
- Frozen hard. Set each clove pointed end up, with 2 to 3 inches of soil over the tip.
- Frost, then thaw. Set each clove pointed end up, with about 2 inches of soil over the tip.
- Rare frost. Set each clove pointed end up, with 1 to 1.5 inches of soil over the tip.
- Space cloves 6 inches apart in rows 12 inches apart, or on a 6-inch grid in a raised bed. Water the bed if the soil is dry.
- Frozen hard. Once the ground starts to freeze, cover the bed with 3 to 6 inches of straw or shredded leaves. Not hay, which brings weed seed.
- Frost, then thaw. Cover the bed with 3 to 6 inches of straw or shredded leaves. Not hay, which brings weed seed.
- Rare frost. Mulch is optional. If you use it, spread 2 to 3 inches of straw once shoots are up, kept 2 to 3 inches from the stems.
- Growing in a pot? Use one at least 8 inches deep, with drainage holes, filled with potting mix.
- Frozen hard. For winter, sink the pot in the ground, or set it against a north or east wall and pack straw around it.
In a field trial, the biggest cloves gave about a quarter more garlic than the smallest.
Sources
- Step 1. New England Vegetable Management Guide (New England land-grant extension), Garlic; Penn State Extension, Growing Garlic: Fall Planting; University of Georgia Extension, Garlic Production for the Gardener (C854); Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); Ontario Ministry of Agriculture vegetable specialists, ONvegetables (Travis Cranmer), When is the Best Time to Plant Garlic? (August 18, 2026); University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; University of Illinois Extension, Growing Garlic info sheet (updated September 2020); Montana State University Extension, Growing Garlic in Montana (MT199904AG); UC Master Gardeners of Tulare and Kings Counties, UC Cooperative Extension, Grow Your Own Garlic 2020 (UC Master Gardener newspaper column); University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine
- Step 2. Measured to the tip. Sources run from 1 to 4 inches, deeper where winters are colder. University of Illinois Extension, Growing Garlic info sheet (updated September 2020); University of Georgia Extension, Garlic Production for the Gardener (C854); Clemson Cooperative Extension, Home & Garden Information Center, Onion, Leek, Shallot, & Garlic (HGIC 1314); University of Maryland Extension, Growing Garlic in the Home Garden; Cornell Small Farms Program (article by Petra Page-Mann of Fruition Seeds, a seed company; grower opinion), Six Mistakes to Avoid When Planting Garlic & Shallots (2019); University of Minnesota Extension, Growing garlic in home gardens; Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; New England Vegetable Management Guide (New England land-grant extension), Garlic; New Mexico State University Cooperative Extension, Garlic Production in New Mexico (Guide H-234); University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum
- Step 3. University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; Cornell University CALS, Horticulture Section (Steve Reiners), Plan on Garlic This Fall (2020); Utah State University Extension, Garlic in the Garden; Oregon State University Extension Service, Fall is the best time to plant garlic in Oregon (2023, reviewed 2025); University of New Hampshire Extension, Growing Garlic in New Hampshire [fact sheet]; University of Illinois Extension, Growing Garlic info sheet (updated September 2020); University of Tennessee Extension, Garlic for the Tennessee Vegetable Garden (D 75, 2019); University of Minnesota Extension, Growing garlic in home gardens; UNH Cooperative Extension, Growing Garlic in New Hampshire; University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); South Dakota State University Extension, Planting Garlic; University of Georgia Extension, Garlic Production for the Gardener (C854); New Mexico State University Cooperative Extension, Garlic Production in New Mexico (Guide H-234); University of Arizona Cooperative Extension, Yavapai County, Backyard Gardener #160: Garlic (2024)
- Step 4. University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; University of New Hampshire Extension, Growing Garlic in New Hampshire [fact sheet]; Cornell Small Farms Program (article by Petra Page-Mann of Fruition Seeds, a seed company; grower opinion), Six Mistakes to Avoid When Planting Garlic & Shallots (2019); University of Minnesota Extension, Growing garlic in home gardens; Montana State University Extension, Growing Garlic in Montana (MT199904AG); Penn State Extension, Growing Garlic: Fall Planting; New England Vegetable Management Guide (New England land-grant extension), Garlic; Cornell University CALS, Horticulture Section (Steve Reiners), Plan on Garlic This Fall (2020); Iowa State University Extension and Outreach, Yard and Garden, When and where should I plant garlic?; UNH Cooperative Extension, Growing Garlic in New Hampshire; South Dakota State University Extension, Planting Garlic; University of Maine Cooperative Extension, funded in part by Northeast SARE (USDA NIFA), Growing Healthy Garlic: Curing and Disease Issues (Steven B. Johnson presentation transcript); Ohio State University Extension, Growing Garlic in the Garden (HYG-1627)
- Step 5. Oregon State University Extension Service, Food Hero, Garlic (Fall), Quick Garden Tips; University of Maryland Extension, Types of Containers for Growing Vegetables; University of Maryland Extension, Growing Vegetables in Containers and Salad Tables; University of Illinois Extension, Overwintering potted plants
- Good to know. Desta, Tena, Amare & Ferrante (2021), The Scientific World Journal 2021:7351873
Leave it be Now
Dec to MarDec to Feb
- Green shoots in fall or in a warm spell are normal. Leave them alone.
- If shoots are up and hard cold returns with no snow on the ground, add one more layer of mulch.
- On a windy site, weigh the straw down with branches.
Sources
- Step 1. University of New Hampshire Extension, Growing Garlic in New Hampshire [fact sheet]; Cornell University CALS, Horticulture Section (Steve Reiners), Plan on Garlic This Fall (2020); Ontario Ministry of Agriculture vegetable specialists, ONvegetables (Travis Cranmer), When is the best time to plant garlic? (January 30, 2024); Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; UNH Cooperative Extension, Growing Garlic in New Hampshire
- Step 2. University of New Hampshire Extension, Growing Garlic in New Hampshire [fact sheet]; Cornell University CALS, Horticulture Section (Steve Reiners), Plan on Garlic This Fall (2020); Ontario Ministry of Agriculture vegetable specialists, ONvegetables (Travis Cranmer), When is the best time to plant garlic? (January 30, 2024); Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; Iowa State University Extension, Yard and Garden, It's only February, but my garlic is coming up. What should I do?
- Step 3. Penn State Extension, Growing Garlic: Fall Planting; Montana State University Extension, Growing Garlic in Montana (MT199904AG); North Dakota State University Extension, Plant Garlic This Fall (2011 news release)
Feed, water and weed Now
Apr to MayMar to AprFeb to Mar
- Frozen hard. Spring, as the shoots grow again.
- Frost, then thaw. Late winter into spring.
- Rare frost. Late winter into early spring.
- Frozen hard. New spring growth, with shoots about 4 to 6 inches tall.
- Frost, then thaw. New spring growth, with shoots about 4 to 6 inches tall.
- Rare frost. Late winter, with shoots 4 to 6 inches tall or more.
- In early spring, once hard freezes are over, pull the mulch off the rows and tuck it between them.
- Frozen hard. Scatter about 1/3 cup of 21-0-0 beside the rows of a 4 by 8 bed and scratch it in. You can repeat with half that 2 to 3 weeks later.
- Frost, then thaw. Scatter about 1/3 cup of 21-0-0 beside the rows of a 4 by 8 bed and scratch it in. You can repeat with half that 2 to 3 weeks later.
- Rare frost. In late winter, scatter about 1/3 cup of 21-0-0 beside the rows of a 4 by 8 bed and scratch it in. Repeat with half that 3 to 4 weeks later.
- Frozen hard. Give the last feeding by early May, before the bulbs start to swell.
- Frost, then thaw. Give the last feeding in April, before the bulbs start to swell.
- Rare frost. Give the last feeding by early April, before the bulbs start to swell.
- Water an inch a week when rain falls short, about 20 gallons for a 4 by 8 bed, soaking deeply.
- Keep the bed free of weeds. Pull them while they're under an inch tall, and hoe only shallowly.
21-0-0 is ammonium sulfate, so it also supplies sulfur. In a field trial, sulfur made garlic more pungent.
Sources
- Step 1. Iowa State University Extension and Outreach, Yard and Garden, When and where should I plant garlic?; University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; New England Vegetable Management Guide (New England land-grant extension), Garlic; University of New Hampshire Extension, Growing Garlic in New Hampshire [fact sheet]; University of Minnesota Extension, Growing garlic in home gardens; University of Minnesota Extension, Growing garlic in home gardens; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627)
- Step 2. 1/2 lb of 21-0-0 per 100 sq ft for the first feeding and 1/4 lb for a second (Utah State). 1 cup weighs about 1/2 lb (Iowa State). A 4 by 8 bed is 32 sq ft. University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); University of Minnesota Extension, Growing garlic in home gardens; New England Vegetable Management Guide (New England land-grant extension), Garlic; NC State Extension, Pamlico County Center, Let's Plant Some Garlic; Oregon State University Extension Service, Food Hero, Garlic (Fall), Quick Garden Tips; Utah State University Extension, How to Grow Garlic in Your Garden; Iowa State University Extension, Yard and Garden, How to Calculate Fertilizer Rates for the Garden; University of Tennessee Institute of Agriculture (UT Crops), Home Garlic; Iowa State University Extension, Yard and Garden, How do I grow and care for garlic?; Texas AgriLife Extension Service (Joe Masabni), Garlic (crop production sheet)
- Step 3. University of Minnesota Extension, Growing garlic in home gardens; University of Georgia Extension, Garlic Production for the Gardener (C854); University of Minnesota Extension, What's wrong with my plant? Garlic: undersized or no bulb developed; University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); New England Vegetable Management Guide (New England land-grant extension), Garlic; Texas AgriLife Extension Service (Joe Masabni), Garlic (crop production sheet); Utah State University Extension, How to Grow Garlic in Your Garden; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); University of Minnesota Extension, What's wrong with my plant? Garlic: leaves yellow then wilt
- Step 4. University of Minnesota Extension, Growing garlic in home gardens; Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); Texas AgriLife Extension Service (Joe Masabni), Garlic (crop production sheet); Utah State University Extension, How to Grow Garlic in Your Garden; UC Statewide IPM Program, Cultural Tips for Growing Onions and Garlic; Iowa State University Extension, Yard and Garden, How do I grow and care for garlic?
- Step 5. New England Vegetable Management Guide, Garlic: Weed Control; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; Utah State University Extension, How to Grow Garlic in Your Garden; University of Minnesota Extension, Growing garlic in home gardens; Universidade Estadual de Maringa (peer-reviewed journal), Periods of weed interference in garlic crop (Guerra et al. 2024), Acta Scientiarum Agronomy 46:e68403; Rutgers NJAES Cooperative Extension, FS1233: Growing Garlic in the Home Garden; Montana State University Extension, Growing Garlic in Montana (MT199904AG); Utah State University Extension, Garlic in the Garden; University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; University of Georgia Extension, Garlic Production for the Gardener (C854)
- Good to know. Bloem, Haneklaus & Schnug (2011), J. Agric. Food Chem. 59(9):4442 to 4447
Snap off the scapes Now
JunMayApr
- Frozen hard. Early summer.
- Frost, then thaw. Late spring.
- Rare frost. Spring.
- Snap or cut each scape once it curls, anywhere from the first curl to a full loop, before it straightens and turns woody. Take it where it leaves the top leaf.
- Eat them like green onions: raw, in pesto, or stir-fried.
- Removing scapes matters most on poor or lightly fed soil, where the bulbs come out noticeably bigger.
In a three-year trial, cutting scapes before they made half a turn gave a bigger total crop than leaving them on.
Sources
- Step 1. University of Minnesota Extension, Growing garlic in home gardens; University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; Penn State Extension, Growing and Using Garlic; New England Vegetable Management Guide (New England land-grant extension), Garlic; University of Maine Cooperative Extension, Garlic IPM Newsletter No. 9, June 12, 2025; Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); University of Arizona Cooperative Extension, Yavapai County, Backyard Gardener #160: Garlic (2024); University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; Oregon State University Department of Horticulture, Garlic (Oregon Vegetables commercial production guide)
- Step 2. Penn State Extension, Growing and Using Garlic; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum
- Step 3. University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); University of Arizona Cooperative Extension, Yavapai County, Backyard Gardener #160: Garlic (2024)
- Good to know. Pelter et al. (2005), Acta Horticulturae 688:323 to 326; Guo et al. (2026), HortScience 61(6):1348 to 1357
Harvest while some leaves are green Now
JulJunMay to Jun
- Frozen hard. Midsummer.
- Frost, then thaw. Early to midsummer.
- Rare frost. Late spring to early summer.
- When the lower leaves start to yellow, stop watering.
- Dig one bulb and cut it across. When the cloves fill their skins, it's time.
- Lift when a third to a half of the leaves have died back and at least three still have no brown tips. Early beats late, when bulbs split and store poorly.
- Loosen the soil with a fork, then lift. Don't pull by the stem or wash the bulbs.
- Move them into shade right away. Don't leave dug bulbs lying in hot sun.
Sources
- Step 1. University of Minnesota Extension, Growing garlic in home gardens; Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); Utah State University Extension, How to Grow Garlic in Your Garden; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); UC Statewide IPM Program, Cultural Tips for Growing Onions and Garlic; University of Arizona Cooperative Extension, Yavapai County, Backyard Gardener #160: Garlic (2024); Iowa State University Extension, Yard and Garden, How do I grow and care for garlic?; University of Minnesota Extension, Growing garlic in home gardens; Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); UC Statewide IPM Program (UC ANR), Cultural Tips for Growing Onions and Garlic
- Step 2. New England Vegetable Management Guide (New England land-grant extension), Garlic; University of Minnesota Extension, Growing garlic in home gardens; University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); University of Georgia Extension, Garlic Production for the Gardener (C854)
- Step 3. University of Minnesota Extension, Growing garlic in home gardens; UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage; Montana State University Extension, Growing Garlic in Montana (MT199904AG); Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; PlantTalk Colorado, Colorado State University Extension, 1827 Harvesting Garlic; University of Georgia Extension, Garlic Production for the Gardener (C854); Oregon State University Extension Service, Fall is the best time to plant garlic in Oregon (2023, reviewed 2025); Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E); University of Minnesota Extension, Growing garlic in home gardens; University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); LSU AgCenter, Garlic in the Garden
- Step 4. UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage; Ohio State University Extension (Ohioline), Growing Garlic in the Garden (HYG-1627); University of California ANR, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); Montana State University Extension, Growing Garlic in Montana (MT199904AG); New England Vegetable Management Guide (New England land-grant extension), Garlic
- Step 5. New England Vegetable Management Guide (New England land-grant extension), Garlic; Montana State University Extension, Growing Garlic in Montana (MT199904AG); University of Georgia Extension, Garlic Production for the Gardener (C854); UC Statewide IPM Program (UC ANR), Cultural Tips for Growing Onions and Garlic
Cure, then store Now
AugJul to AugJul to Aug
- Hang small bundles, or spread them one layer deep, in shade with moving air, out of rain and below about 90°F, leaves and roots on. To braid softnecks, wait 2 to 3 days, braid while the leaves still bend, then hang the braid to cure.
- Expect anywhere from 10 days to 6 weeks, longer when it's humid.
- Once cured, trim unbraided bulbs: stems to about an inch, roots to 1/4 inch. Keep the papery wrappers on.
- Store bulbs whole in a mesh bag or basket somewhere dark, dry and airy. Near 60°F they keep 3 to 5 months; at warm room temperature, 1 to 2. Not in the fridge, where cloves sprout fastest.
- Eat hardnecks first; softnecks keep longer. Garlic in oil must go in the fridge and be used within 2 to 3 days, or frozen.
Sources
- Step 1. University of California ANR, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); PlantTalk Colorado, Colorado State University Extension, 1827 Harvesting Garlic; University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage; Clemson University Cooperative Extension (copy hosted by UC ANR), Preserving Onions and Garlic; Ohio State University Extension (Ohioline), Growing Garlic in the Garden (HYG-1627); Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E)
- Step 2. UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage; University of Minnesota Extension, Growing garlic in home gardens; Montana State University Extension, Growing Garlic in Montana (MT199904AG); University of Tennessee Institute of Agriculture News (UT Extension), Garlic in the Garden; University of California ANR, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); Utah State University Extension, Garlic in the Garden; UVM Extension Agricultural Engineering, hosted by SARE, Postharvest Garlic Trials (slides)
- Step 3. New England Vegetable Management Guide (New England land-grant extension), Garlic; University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); Ohio State University Extension (Ohioline), Growing Garlic in the Garden (HYG-1627); University of California ANR, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; Oregon State University Extension Service, Fall is the best time to plant garlic in Oregon (2023, reviewed 2025); Oregon State University Extension Service, Food Hero, Garlic (Fall), Quick Garden Tips
- Step 4. University of California ANR, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); Ohio State University Extension (Ohioline), Growing Garlic in the Garden (HYG-1627); University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); University of Georgia Extension, Garlic Production for the Gardener (C854); UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage; Clemson University Cooperative Extension (copy hosted by UC ANR), Preserving Onions and Garlic; Montana State University Extension, Growing Garlic in Montana (MT199904AG); PlantTalk Colorado, Colorado State University Extension, 1827 Harvesting Garlic; Oregon State University Extension Service, Fall is the best time to plant garlic in Oregon (2023, reviewed 2025); Texas AgriLife Extension Service (Joe Masabni), Garlic (crop production sheet); University of California Agriculture and Natural Resources, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); University of Maine Cooperative Extension, funded in part by Northeast SARE (USDA NIFA), Growing Healthy Garlic: Curing and Disease Issues (Steven B. Johnson presentation transcript)
- Step 5. University of California ANR, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); Montana State University Extension, Growing Garlic in Montana (MT199904AG); Ohio State University Extension (Ohioline), Growing Garlic in the Garden (HYG-1627); Utah State University Extension, Garlic in the Garden; University of Georgia Cooperative Extension, Production and Management of Garlic, Elephant Garlic, and Leek (Circular 852); Clemson University Cooperative Extension (copy hosted by UC ANR), Preserving Onions and Garlic
Save the best for next fall Now
AugAugJul to Aug
- Set aside your biggest, healthiest bulbs with firm, unbroken wrappers. To replant the same bed, keep at least a quarter of the harvest by weight.
- Keep them whole, dry and airy, in the coolest room you have, ideally 50 to 60°F, until planting day.
- Never save garlic from plants that rotted, grew white mold or stunted, or from any bed where white rot, bloat nematode or basal rot showed up. Start again with clean seed.
- Round bulbs with no cloves can be replanted. They usually split into a full bulb the next year.
Seed held for months near 40°F, as in a fridge, makes rough bulbs with side shoots and ripens early.
Sources
- Step 1. University of Georgia Extension, Garlic Production for the Gardener (C854); Utah State University Extension, Garlic in the Garden; New England Vegetable Management Guide (New England land-grant extension), Garlic; Ohio State University Extension (Ohioline), Growing Garlic in the Garden (HYG-1627)
- Step 2. UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage; Texas AgriLife Extension Service (Joe Masabni), Garlic (crop production sheet); Montana State University Extension, Growing Garlic in Montana (MT199904AG); North Dakota State University Extension (Carrie Knutson), Growing Great Garlic (slides); New England Vegetable Management Guide (New England land-grant extension), Garlic; Oregon State University Department of Horticulture, Garlic (Oregon Vegetables commercial production guide); UConn Extension, Garlic Cultivation in Connecticut; UF/IFAS Extension, Horticultural Sciences Department, Garlic, Allium sativum L. (HS597). Copy hosted by growables.com; the EDIS page no longer resolves; University of Maine Cooperative Extension, funded in part by Northeast SARE (USDA NIFA), Growing Healthy Garlic: Curing and Disease Issues (Steven B. Johnson presentation transcript)
- Step 3. University of Maine Cooperative Extension, Maine Garlic Pest Field Notebook; Cornell University, New York State Agricultural Experiment Station (June 2015), Bloat Nematode on Garlic; UC Statewide IPM Program, White Rot: Onion and Garlic Pest Management Guidelines; UC Statewide IPM Program, Fusarium Basal Rot: Onion and Garlic Pest Management Guidelines; Cornell AgriTech, Cornell University, Diseases of garlic (Frank Hay, NOFA Winter Conference 2019)
- Step 4. University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); LSU AgCenter, Garlic in the Garden; New Mexico State University Cooperative Extension, Garlic Production in New Mexico (Guide H-234)
- Good to know. UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage; Texas AgriLife Extension Service (Joe Masabni), Garlic (crop production sheet); Montana State University Extension, Growing Garlic in Montana (MT199904AG); North Dakota State University Extension (Carrie Knutson), Growing Great Garlic (slides)
When something goes wrong
Before anything else, dig up one sick plant and look at its roots and the base of the bulb.
- Round bulbs with no cloves
- The cloves were too small, went in too late or in spring, or the type doesn't suit your winter. Cook them like one big clove, or replant them in fall.
- Small bulbs
- Usually too little sun, crowding, weeds or a dry spring. Next time give 6 or more hours of sun and 6 inches between cloves, and keep the bed weeded. In spring, give an inch of water a week when rain falls short.
- Cloves pushed out of the ground over winter
- They went in too late to root, or the bed had no mulch where the soil freezes and thaws. Plant a little earlier and mulch once the ground starts to freeze.
- Yellow leaf tips
- Normal as harvest nears. Earlier in spring it's a warning: water stress, low nutrients or disease. If the whole plant is pale with thin stems, but its roots are white and its base is firm, it needs nitrogen.
- Small orange spots
- Rust. Give plants room, go easy on nitrogen, pull stray onion-family plants nearby, and keep onion-family crops out of that spot for 2 to 3 years.
- Silvery streaks on the leaves
- Thrips, tiny insects in the leaf folds, worst in warm dry weather. A hard rain or a sprinkler knocks them back, and keeping weeds down helps.
- Sudden wilting, with small white maggots at the base
- Onion maggot. Pull and destroy the plant. Next year plant garlic somewhere else, under floating row cover.
- White fluff with tiny black poppy-seed specks at the base
- White rot. Bag the plant, its neighbors and the soil around them for the trash, never the compost. Wash your tools with soap and water, then soak them at least 2 minutes in 1 part bleach to 9 parts water. Stop growing onion-family crops in that spot. Have your extension office confirm it.
- Short, thick leaves that yellow and collapse early, and light bulbs with few roots
- Likely bloat nematode. Pull those plants and bin them with their soil. Don't replant any garlic from that bed, and keep onion-family crops out of it for 4 years. Have your extension office confirm it.
- A soft, rotting base with white or pink mold
- Basal rot. Pull those plants, don't save any of that garlic for seed, and keep onion-family crops out of the bed for 3 to 4 years. If you also see tiny black specks, treat it as white rot.
- Bulbs that split open
- They were dug too late. Lift a little earlier next year.
- Cloves sprouting in storage
- Garlic sprouts fastest at 40 to 50°F, as in a fridge, and in light. Store it near 60°F in the dark, where it keeps 3 to 5 months, and eat hardnecks first. Sprouted cloves are safe to eat.
Sources
- First step. University of Idaho Extension, Beware Signs of White Rot in Garlic and Other Allium Crops (BUL 955); University of Minnesota Extension, What's wrong with my plant? Garlic: leaves yellow then wilt; University of Minnesota Extension, What's wrong with my plant? Garlic: spots, streaks or blotches on leaves
- Round bulbs with no cloves. Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); University of Arkansas Division of Agriculture Cooperative Extension, Home Gardening Series: Garlic (FSA6085); Oregon State University Department of Horticulture, Garlic (Oregon Vegetables commercial production guide); Ask Extension (eXtension Foundation), answered by an Extension expert, No garlic clusters only single bulbs; LSU AgCenter, Garlic in the Garden; New Mexico State University Cooperative Extension, Garlic Production in New Mexico (Guide H-234); University of Maryland Extension, Growing Garlic in the Home Garden; Utah State University Extension, How to Grow Garlic in Your Garden; University of Georgia Extension, Garlic Production for the Gardener (C854); University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine
- Small bulbs. University of Maryland Extension, Growing Garlic in the Home Garden; University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; Utah State University Extension, How to Grow Garlic in Your Garden; University of Minnesota Extension, Growing garlic in home gardens; Rutgers NJAES Cooperative Extension, FS1233: Growing Garlic in the Home Garden; University of Maine Cooperative Extension, funded in part by Northeast SARE (USDA NIFA), Growing Healthy Garlic: Curing and Disease Issues (Steven B. Johnson presentation transcript); University of Arkansas Division of Agriculture Cooperative Extension, Home Gardening Series: Garlic (FSA6085); University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); South Dakota State University Extension, Planting Garlic
- Cloves pushed out of the ground over winter. Ontario Ministry of Agriculture vegetable specialists, ONvegetables (Travis Cranmer), When is the Best Time to Plant Garlic? (August 18, 2026); Colorado State University Extension, Tri River Area, Fall Planting: Garlic in Western Colorado (2025); UNH Cooperative Extension, Growing Garlic in New Hampshire; South Dakota State University Extension, Planting Garlic; University of Maine Cooperative Extension, Bulletin #2063, Growing Garlic in Maine; University of Maine Cooperative Extension, funded in part by Northeast SARE (USDA NIFA), Growing Healthy Garlic: Curing and Disease Issues (Steven B. Johnson presentation transcript)
- Yellow leaf tips. University of Wisconsin-Madison Division of Extension, Garlic, Allium sativum; University of Maine Cooperative Extension, Garlic IPM Newsletter No. 9, June 12, 2025; Iowa State University Extension and Outreach, Growing Garlic in the Home Garden; University of Georgia Extension, Garlic Production for the Gardener (C854); University of Minnesota Extension, What's wrong with my plant? Garlic: undersized or no bulb developed
- Small orange spots. UC Statewide IPM Program, Rust: Onion and Garlic Pest Management Guidelines; Cornell University, Long Island Horticultural Research and Extension Center, Garlic rust; University of Maine Cooperative Extension, Maine Garlic Pest Field Notebook; Cornell AgriTech, Cornell University, Diseases of garlic (Frank Hay, NOFA Winter Conference 2019); University of Minnesota Extension, What's wrong with my plant? Garlic: undersized or no bulb developed; University of Maine Cooperative Extension, funded in part by Northeast SARE (USDA NIFA), Growing Healthy Garlic: Curing and Disease Issues (Steven B. Johnson presentation transcript); Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E)
- Silvery streaks on the leaves. UC Statewide IPM Program, Thrips: Onion and Garlic Pest Management Guidelines; New England Vegetable Management Guide, Garlic: Insect Control; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627); Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E)
- Sudden wilting, with small white maggots at the base. University of Minnesota Extension, What's wrong with my plant? Garlic: holes in cloves or bulb; Washington State University HortSense, Onions, Garlic: Onion maggot; Utah State University Extension, How to Grow Garlic in Your Garden; University of Minnesota Extension, Growing garlic in home gardens; Ohio State University Extension, Growing Garlic in the Garden (HYG-1627)
- White fluff with tiny black poppy-seed specks at the base. University of Idaho Extension, Beware Signs of White Rot in Garlic and Other Allium Crops (BUL 955); UC Statewide IPM Program, White Rot (home and landscape); UC Statewide IPM Program, White Rot: Onion and Garlic Pest Management Guidelines; UMass Extension Vegetable Program, Alliums, White Rot; Washington State University HortSense, Onions, Garlic: White rot; Cornell AgriTech, Cornell University, Diseases of garlic (Frank Hay, NOFA Winter Conference 2019); University of Minnesota Extension, What's wrong with my plant? Garlic: leaves yellow then wilt; University of Maine Cooperative Extension, Maine Garlic Pest Field Notebook; Crowe, Hall, Greathead & Baghott (1980), Phytopathology 70:64 to 69; Coley-Smith & Entwistle (1988), Plant Pathology 37(2):261 to 264; Clarkson et al. (2006), Plant Pathology 55(3):375 to 386
- Short, thick leaves that yellow and collapse early, and light bulbs with few roots. Cornell University, New York State Agricultural Experiment Station (June 2015), Bloat Nematode on Garlic; UMass Extension Vegetable Program, Garlic Bloat Nematode; New England Vegetable Management Guide, Garlic: Disease Control; University of Maine Cooperative Extension, Maine Garlic Pest Field Notebook; University of Minnesota Extension, What's wrong with my plant? Garlic: leaves yellow then wilt
- A soft, rotting base with white or pink mold. UC Statewide IPM Program, Fusarium Basal Rot: Onion and Garlic Pest Management Guidelines; University of Minnesota Extension, What's wrong with my plant? Garlic: bulb rotten from the base up; Cornell AgriTech, Cornell University, Diseases of garlic (Frank Hay, NOFA Winter Conference 2019); New England Vegetable Management Guide, Garlic: Disease Control; Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E)
- Bulbs that split open. University of Minnesota Extension, Growing garlic in home gardens; UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage; Oregon State University Extension Service, Fall is the best time to plant garlic in Oregon (2023, reviewed 2025); Montana State University Extension, Growing Garlic in Montana (MT199904AG); University of Georgia Extension, Garlic Production for the Gardener (C854); Washington State University Extension, Vegetables: Growing Garlic in Home Gardens (FS162E)
- Cloves sprouting in storage. Texas AgriLife Extension Service (Joe Masabni), Garlic (crop production sheet); University of California Agriculture and Natural Resources, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); University of Nebraska-Lincoln Extension, Garlic Production in the Home Garden (G2221); University of Maine Cooperative Extension, funded in part by Northeast SARE (USDA NIFA), Growing Healthy Garlic: Curing and Disease Issues (Steven B. Johnson presentation transcript); University of California ANR, Garlic: Safe Methods to Store, Preserve, and Enjoy (ANR Publication 8568); Oregon State University Extension Service, Fall is the best time to plant garlic in Oregon (2023, reviewed 2025); University of Georgia Extension, Garlic Production for the Gardener (C854); Ohio State University Extension (Ohioline), Growing Garlic in the Garden (HYG-1627); UMass Extension Vegetable Program (tips from Cornell Cooperative Extension), Garlic Harvest, Curing, and Storage; Clemson University Cooperative Extension (copy hosted by UC ANR), Preserving Onions and Garlic; Montana State University Extension, Growing Garlic in Montana (MT199904AG); PlantTalk Colorado, Colorado State University Extension, 1827 Harvesting Garlic