When to plant bush (snap) bean in Washington
Bush (snap) bean is frost-tender, so every date keys off Washington's last spring frost of Mar 24.
Step 1 · Sow
Direct sow outdoors
Apr 30 – May 21
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 19 – Jun 29
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Washington's 234-day season leaves this much room.
Bush (snap) bean on Washington'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
MAR 24
NOV 17
Common questions
When can I sow bush (snap) bean outdoors in Washington?
Direct-sow around late April (Apr 30–May 21) in Washington, based on its local frost dates. Confidence 86%.
When will bush (snap) bean be ready to harvest in Washington?
Expect to harvest from around mid June (Jun 19–Jun 29) in Washington, based on its local frost dates. Confidence 80%.
How long is the growing season in Washington?
Washington has roughly 234 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 Washington's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.