When to plant bush (snap) bean in Sapporo
Bush (snap) bean is frost-tender, so every date keys off Sapporo's last spring frost of May 12.
Step 1 · Sow
Direct sow outdoors
Jul 2 – Jul 23
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Aug 21 – Aug 31
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Sapporo's 166-day season leaves this much room.
Bush (snap) bean on Sapporo'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
MAY 12
OCT 20
Common questions
When can I sow bush (snap) bean outdoors in Sapporo?
Direct-sow around early July (Jul 2–Jul 23) in Sapporo, based on its local frost dates. Confidence 44%.
When will bush (snap) bean be ready to harvest in Sapporo?
Expect to harvest from around late August (Aug 21–Aug 31) in Sapporo, based on its local frost dates. Confidence 40%.
How long is the growing season in Sapporo?
Sapporo has roughly 166 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 Sapporo's frost dates.
Confidence 45/100 · Curated · based on NASA POWER (modeled) 1991–2020 · frost dates are probabilities, not guarantees.