When to plant turnip in Baltimore
Turnip is cold-hardy, so every date keys off Baltimore's frost dates of Mar 21.
Step 1 · Sow
Direct sow outdoors
Feb 28 – Mar 21
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Apr 9 – Apr 24
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Sep 12 – Sep 26
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 29 – Nov 13
Maturity window for the second sowing.
Window
Days to maturity
40 – 55 d
Baltimore's 249-day season leaves this much room.
Turnip on Baltimore'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
MAR 21
NOV 27
Common questions
When can I sow turnip outdoors in Baltimore?
Direct-sow around late February (Feb 28–Mar 21) in Baltimore, based on its local frost dates. Confidence 84%.
When will turnip be ready to harvest in Baltimore?
Expect to harvest from around early April (Apr 9–Apr 24) in Baltimore, based on its local frost dates. Confidence 76%.
Can I plant turnip in autumn in Baltimore?
Yes — Baltimore supports a second, autumn sowing of turnip around mid September (Sep 12–Sep 26), timed to mature before the first fall frost.
How long is the growing season in Baltimore?
Baltimore has roughly 249 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 Baltimore's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.