When to plant spinach in Fukuoka
Spinach is cold-hardy, so every date keys off Fukuoka's frost dates of Mar 15.
Step 1 · Sow
Direct sow outdoors
Feb 1 – Feb 22
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Mar 13 – Mar 23
Picking runs until conditions turn against the crop.
Window
Days to maturity
40 – 50 d
Fukuoka's 268-day season leaves this much room.
Spinach on Fukuoka'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
MAR 15
DEC 8
Common questions
When can I sow spinach outdoors in Fukuoka?
Direct-sow around early February (Feb 1–Feb 22) in Fukuoka, based on its local frost dates. Confidence 72%.
When will spinach be ready to harvest in Fukuoka?
Expect to harvest from around mid March (Mar 13–Mar 23) in Fukuoka, based on its local frost dates. Confidence 65%.
How long is the growing season in Fukuoka?
Fukuoka has roughly 268 frost-free days, which is enough time to grow spinach to maturity outdoors.
The rule of thumb
Sow spinach 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 Fukuoka's frost dates.
Confidence 72/100 · NASA POWER (modeled) · 1991–2020 · frost dates are probabilities, not guarantees.