When to plant turnip in Oklahoma City
Turnip is cold-hardy, so every date keys off Oklahoma City's frost dates of Apr 3.
Step 1 · Sow
Direct sow outdoors
Dec 25 – Jan 15
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Feb 3 – Feb 18
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Aug 21 – Sep 4
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 7 – Oct 22
Maturity window for the second sowing.
Window
Days to maturity
40 – 55 d
Oklahoma City's 223-day season leaves this much room.
Turnip on Oklahoma City'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 3
NOV 5
Common questions
When can I sow turnip outdoors in Oklahoma City?
Direct-sow around late December (Dec 25–Jan 15) in Oklahoma City, based on its local frost dates. Confidence 85%.
When will turnip be ready to harvest in Oklahoma City?
Expect to harvest from around early February (Feb 3–Feb 18) in Oklahoma City, based on its local frost dates. Confidence 79%.
Can I plant turnip in autumn in Oklahoma City?
Yes — Oklahoma City supports a second, autumn sowing of turnip around late August (Aug 21–Sep 4), timed to mature before the first fall frost.
How long is the growing season in Oklahoma City?
Oklahoma City has roughly 223 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 Oklahoma City's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.