When to plant potato in Osaka
Potato is cold-hardy, so every date keys off Osaka's frost dates of Mar 22.
Step 1 · Sow
Direct sow outdoors
Mar 8 – Mar 29
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 17 – Jul 6
Picking runs until conditions turn against the crop.
Window
Days to maturity
70 – 120 d
Osaka's 258-day season leaves this much room.
Potato 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
HARVEST
MAR 22
DEC 5
Common questions
When can I sow potato outdoors in Osaka?
Direct-sow around early March (Mar 8–Mar 29) in Osaka, based on its local frost dates. Confidence 86%.
When will potato be ready to harvest in Osaka?
Expect to harvest from around mid May (May 17–Jul 6) in Osaka, based on its local frost dates. Confidence 77%.
How long is the growing season in Osaka?
Osaka has roughly 258 frost-free days, which is enough time to grow potato to maturity outdoors.
The rule of thumb
Sow potato 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 86/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.