Plant Garlic in Zone 12a
Seed-starting, transplant & harvest dates for USDA Zone 12a
Plant cloves in fall, from about the first frost through the following month, so they root before the ground freezes.
Zone 12a is effectively frost-free, so the Zone 12a calendar for garlic is set by heat, not cold. There is no last frost to count backward from and no first frost to beat, which means the question is not whether garlic will finish but whether it will sit through the hottest stretch of the year. Garlic is a hardy crop needing about 240 days from sowing to harvest.
Planting garlic for a fall harvest in Zone 12a
Zone 12a has no meaningful frost, so the fall and winter months are the easiest time of year to grow garlic here. Sow from about October 1 onward.
Garlic is the definitive fall crop. Plant cloves from around your first frost through the next four weeks: late enough that they root without pushing much top growth, early enough to establish before the ground freezes hard.
Fall dates are counted backward from the Zone 12a average first frost, not forward from a sowing date. See the fall planting calendar by zone for the full method.
Spring vs fall garlic in Zone 12a
| Planting | Sow or start | In the ground | Harvest |
|---|---|---|---|
| Spring | Feb 1 | Feb 1 | Sep 29 |
| Fall | Oct onward | Oct onward | Next spring |
Garlic in nearby zones
Further reading on garlic
- When to plant garlic by zone
The fall planting window for garlic and other alliums in every zone.
- Last frost date and what to plant before it
Why garlic can go out before your last frost, and how far before.
- Row covers vs frost blankets
Which cover buys garlic the extra degrees on a frosty night.
Other crops in Zone 12a
Frequently asked questions
When should I start garlic in Zone 12a?
Direct sow outdoors around Feb 1.
Can I direct sow garlic in Zone 12a?
Yes, direct sow around Feb 1.
Can I plant garlic in the fall in Zone 12a?
Zone 12a has no meaningful frost, so the fall and winter months are the easiest time of year to grow garlic here. Sow from about October 1 onward.
Will garlic survive frost in Zone 12a?
Garlic is a hardy crop and keeps going roughly 28 days past the first light frost in Zone 12a. A row cover or a straw mulch buys more.