When to plant bush (snap) bean in Tokyo
Bush (snap) bean is frost-tender, so every date keys off Tokyo's last spring frost of Mar 28.
Step 1 · Sow
Direct sow outdoors
May 11 – Jun 1
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 30 – Jul 10
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Tokyo's 258-day season leaves this much room.
Bush (snap) bean 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 bush (snap) bean outdoors in Tokyo?
Direct-sow around mid May (May 11–Jun 1) in Tokyo, based on its local frost dates. Confidence 44%.
When will bush (snap) bean be ready to harvest in Tokyo?
Expect to harvest from around late June (Jun 30–Jul 10) in Tokyo, based on its local frost dates. Confidence 40%.
How long is the growing season in Tokyo?
Tokyo has roughly 258 frost-free days, which is enough time to grow bush (snap) bean to maturity outdoors.
The rule of thumb
Sow bush (snap) bean 6–8 weeks before your last spring frost; plant out 2–3 weeks after it. 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.