When to plant bush (snap) bean in Portland
Bush (snap) bean is frost-tender, so every date keys off Portland's last spring frost of May 1.
Step 1 · Sow
Direct sow outdoors
Jun 11 – Jul 2
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 31 – Aug 10
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Portland's 165-day season leaves this much room.
Bush (snap) bean on Portland'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 1
OCT 10
Common questions
When can I sow bush (snap) bean outdoors in Portland?
Direct-sow around mid June (Jun 11–Jul 2) in Portland, based on its local frost dates. Confidence 86%.
When will bush (snap) bean be ready to harvest in Portland?
Expect to harvest from around late July (Jul 31–Aug 10) in Portland, based on its local frost dates. Confidence 80%.
How long is the growing season in Portland?
Portland has roughly 165 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 Portland's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.