When to plant garlic in Houston
Garlic is cold-hardy, so every date keys off Houston's frost dates of Jan 26.
Step 1 · Sow
Direct sow outdoors
Nov 11 – Dec 2
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 9 – Jul 9
Picking runs until conditions turn against the crop.
Window
Days to maturity
240 d
Houston's 317-day season leaves this much room.
Garlic on Houston'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
JAN 26
DEC 9
Common questions
When can I sow garlic outdoors in Houston?
Direct-sow around mid November (Nov 11–Dec 2) in Houston, based on its local frost dates. Confidence 84%.
When will garlic be ready to harvest in Houston?
Expect to harvest from around early July (Jul 9–Jul 9) in Houston, based on its local frost dates. Confidence 76%.
How long is the growing season in Houston?
Houston has roughly 317 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 Houston's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.