When to plant turnip in Osaka
Turnip is cold-hardy, so every date keys off Osaka's frost dates of Apr 10.
Step 1 · Sow
Direct sow outdoors
Mar 20 – Apr 10
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Apr 29 – May 14
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Sep 7 – Sep 21
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 24 – Nov 8
Maturity window for the second sowing.
Window
Days to maturity
40 – 55 d
Osaka's 228-day season leaves this much room.
Turnip on Osaka'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 10
NOV 22
Common questions
When can I sow turnip outdoors in Osaka?
Direct-sow around mid March (Mar 20–Apr 10) in Osaka, based on its local frost dates. Confidence 45%.
When will turnip be ready to harvest in Osaka?
Expect to harvest from around late April (Apr 29–May 14) in Osaka, based on its local frost dates. Confidence 40%.
Can I plant turnip in autumn in Osaka?
Yes — Osaka supports a second, autumn sowing of turnip around early September (Sep 7–Sep 21), timed to mature before the first fall frost.
How long is the growing season in Osaka?
Osaka has roughly 228 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 Osaka's frost dates.
Confidence 45/100 · Curated · based on NASA POWER (modeled) 1991–2020 · frost dates are probabilities, not guarantees.