When to plant garlic in San Antonio
Garlic is cold-hardy, so every date keys off San Antonio's frost dates of Feb 21.
Step 1 · Sow
Direct sow outdoors
Nov 1 – Nov 22
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 29 – Jun 29
Picking runs until conditions turn against the crop.
Window
Days to maturity
240 d
San Antonio's 282-day season leaves this much room.
Garlic on San Antonio's growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
FROST
FROST
FEB 21
NOV 29
Common questions
When can I sow garlic outdoors in San Antonio?
Direct-sow around early November (Nov 1–Nov 22) in San Antonio, based on its local frost dates. Confidence 83%.
When will garlic be ready to harvest in San Antonio?
Expect to harvest from around late June (Jun 29–Jun 29) in San Antonio, based on its local frost dates. Confidence 75%.
How long is the growing season in San Antonio?
San Antonio has roughly 282 frost-free days, which is enough time to grow garlic to maturity outdoors.
The rule of thumb
Sow garlic as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and San Antonio's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.