When to plant garlic in Birmingham
Garlic is cold-hardy, so every date keys off Birmingham's frost dates of Apr 17.
Step 1 · Sow
Direct sow outdoors
Oct 10 – Oct 31
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 7 – Jun 7
Picking runs until conditions turn against the crop.
Window
Days to maturity
240 d
Birmingham's 204-day season leaves this much room.
Garlic on Birmingham'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
APR 17
NOV 7
Common questions
When can I sow garlic outdoors in Birmingham?
Direct-sow around early October (Oct 10–Oct 31) in Birmingham, based on its local frost dates. Confidence 88%.
When will garlic be ready to harvest in Birmingham?
Expect to harvest from around early June (Jun 7–Jun 7) in Birmingham, based on its local frost dates. Confidence 79%.
How long is the growing season in Birmingham?
Birmingham has roughly 204 frost-free days, which is marginal 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 Birmingham's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.