When to plant bush (snap) bean in Seattle
Bush (snap) bean is frost-tender, so every date keys off Seattle's last spring frost of Mar 17.
Step 1 · Sow
Direct sow outdoors
Jun 6 – Jun 27
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 26 – Aug 5
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Seattle's 237-day season leaves this much room.
Bush (snap) bean on Seattle'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 17
NOV 13
Common questions
When can I sow bush (snap) bean outdoors in Seattle?
Direct-sow around early June (Jun 6–Jun 27) in Seattle, based on its local frost dates. Confidence 81%.
When will bush (snap) bean be ready to harvest in Seattle?
Expect to harvest from around late July (Jul 26–Aug 5) in Seattle, based on its local frost dates. Confidence 75%.
How long is the growing season in Seattle?
Seattle has roughly 237 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 Seattle's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.