The rule of thumb: plant garlic around your first fall frost — after the soil has cooled to about 60°F, and 4–6 weeks before the ground freezes. The cloves spend fall growing roots (not shoots), sleep through winter, and explode out of the gate in spring. That winter chill isn't a risk — it's a requirement: garlic needs the cold (vernalization) to divide into a proper head instead of one sad round bulb.
The window, zone by zone
| USDA zone | Plant garlic |
|---|---|
| Zone 3–4 | September to early October |
| Zone 5 | Late September to mid-October |
| Zone 6 | Mid-to-late October |
| Zone 7 | Late October to mid-November |
| Zone 8 | November |
| Zone 9 | Late November to early December (chill cloves 4–6 weeks in the fridge first) |
| Zone 10 | December to January — softneck types only, fridge pre-chill essential |
Don't know your zone or frost date? Both lookups take a minute — the how-to is in our frost date guide, and Zone 6 and Zone 7 gardeners have full year-round calendars here: Zone 6 · Zone 7.
Hardneck or softneck?
- Hardneck (most named varieties up north): needs real winter cold, handles zones 3–7 beautifully, and sends up a curly flower stalk (the "scape") in June that you snap off and eat. Fewer, larger cloves; keeps 4–6 months.
- Softneck (the braiding, grocery-store type): milder winters suit it — zones 7–10 — no scapes, more cloves, and it stores 8+ months.
- Zone 7 is the crossover: both types work. Colder, go hardneck; warmer, go softneck.
How to plant (the whole job)
- Buy seed garlic from a nursery or farmers market — not the supermarket. Grocery garlic is often treated to prevent sprouting, may carry disease, and is usually a California softneck that won't love your climate.
- Break heads into cloves the day you plant, keeping the papery skins on. Plant the biggest cloves; eat the small ones.
- Set each clove pointy end UP, 2–3 inches deep, 4–6 inches apart. In a 4×4 raised bed that's up to 64 cloves — a year of garlic in one bed.
- Mulch 2–4 inches of straw or shredded leaves. This is the whole winter care plan.
- Water once a week until the ground freezes if fall is dry. Then walk away.
The no-bend way to plant garlic
Garlic might be the single best crop for anyone done with kneeling. There's no transplanting, no thinning, no succession sowing — just one planting motion, repeated:
- In a waist-high raised bed, planting is literally standing work: press holes with a dibber (or a thick marker), drop a clove in each, brush soil over, done. Fifty cloves takes ten minutes and zero knee time.
- Mark the grid first — press all your holes 4–6 inches apart, then drop cloves down the line. No switching back and forth between tasks.
- Containers work too (8+ inches deep), with one caution: in zones 5 and colder, pot soil freezes solid through the roots. Cluster pots against a house wall and wrap them, or stick to in-ground and raised beds. Zone 7 and warmer, containers overwinter fine.
Setting up a bed this fall anyway? Height options are in our raised bed height guide.
What happens next (the short version)
Green shoots appear in early spring — sometimes through snow; that's normal. Hardnecks send scapes in June: snap them off so the plant feeds the bulb (and grill them — best cook's treat in the garden). Harvest when the bottom 3–4 leaves have browned but the top ones are still green — late June in warm zones, July up north. Cure the bulbs somewhere shady and airy for two weeks, and save your biggest heads for October: from year two onward, you never buy seed garlic again.
Pencil garlic into your plan
The free Printable Garden Planner Kit has a fall worksheet, frost-date tables for zones 3–10, and bed grids — mark your garlic corner now and October-you will thank you.
Frequently asked questions
Is it too late to plant garlic?
If you can still get a trowel into the ground, it's not too late. Garlic planted even in late November or December will make smaller bulbs than October garlic, but far better ones than anything planted in spring. Past your window? Plant anyway.
Can I plant garlic in spring instead?
You can, and you'll get small bulbs or single "rounds" — spring garlic misses the winter chill that makes cloves divide. In the coldest zones (3–4), very early spring planting of pre-chilled cloves is a workable plan B. Everywhere else, fall wins by a mile.
Can I just plant garlic from the grocery store?
Better not. Supermarket garlic is often treated with a sprout inhibitor, can carry white rot (a soil disease that persists for years), and is usually a mild-winter California variety. Seed garlic from a nursery or farmers market costs a few dollars more once — after that you replant your own.
How much garlic should I plant?
One pound of seed garlic is roughly 40–60 cloves, which becomes 40–60 heads — about a head a week for a year. For most kitchens, 25–50 cloves (half a pound to a pound) is plenty, and it fits in a single 4×4 bed corner-to-corner.
How deep and far apart does garlic go?
Cloves 2–3 inches deep (to the base of the clove), 4–6 inches apart, pointy end up, then 2–4 inches of mulch on top. In cold zones lean deeper and mulch heavier; in zones 8–10 shallower is fine.