When to plant turnip in Birmingham
Turnip is cold-hardy, so every date keys off Birmingham's frost dates of Apr 24.
Step 1 · Sow
Direct sow outdoors
Apr 3 – Apr 24
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 13 – May 28
Picking runs until conditions turn against the crop.
Window
Days to maturity
40 – 55 d
Birmingham's 181-day season leaves this much room.
Turnip 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 24
OCT 22
Common questions
When can I sow turnip outdoors in Birmingham?
Direct-sow around early April (Apr 3–Apr 24) in Birmingham, based on its local frost dates. Confidence 84%.
When will turnip be ready to harvest in Birmingham?
Expect to harvest from around mid May (May 13–May 28) in Birmingham, based on its local frost dates. Confidence 76%.
How long is the growing season in Birmingham?
Birmingham has roughly 181 frost-free days, which is enough time to grow turnip to maturity outdoors.
The rule of thumb
Sow turnip 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 84/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.