When to plant carrot in Tokyo
Carrot is cold-hardy, so every date keys off Tokyo's frost dates of Mar 28.
Step 1 · Sow
Direct sow outdoors
Mar 7 – Mar 28
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 6 – May 26
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Aug 24 – Sep 7
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 30 – Nov 19
Maturity window for the second sowing.
Window
Days to maturity
60 – 80 d
Tokyo's 258-day season leaves this much room.
Carrot on Tokyo'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 28
DEC 11
Common questions
When can I sow carrot outdoors in Tokyo?
Direct-sow around early March (Mar 7–Mar 28) in Tokyo, based on its local frost dates. Confidence 45%.
When will carrot be ready to harvest in Tokyo?
Expect to harvest from around early May (May 6–May 26) in Tokyo, based on its local frost dates. Confidence 40%.
Can I plant carrot in autumn in Tokyo?
Yes — Tokyo supports a second, autumn sowing of carrot around late August (Aug 24–Sep 7), timed to mature before the first fall frost.
How long is the growing season in Tokyo?
Tokyo has roughly 258 frost-free days, which is enough time to grow carrot to maturity outdoors.
The rule of thumb
Sow carrot 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 Tokyo's frost dates.
Confidence 45/100 · Curated · based on NASA POWER (modeled) 1991–2020 · frost dates are probabilities, not guarantees.