When to plant bush (snap) bean in Boston
Bush (snap) bean is frost-tender, so every date keys off Boston's last spring frost of Apr 4.
Step 1 · Sow
Direct sow outdoors
Jun 3 – Jun 24
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 23 – Aug 2
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Boston's 220-day season leaves this much room.
Bush (snap) bean on Boston'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
APR 4
NOV 9
Common questions
When can I sow bush (snap) bean outdoors in Boston?
Direct-sow around early June (Jun 3–Jun 24) in Boston, based on its local frost dates. Confidence 86%.
When will bush (snap) bean be ready to harvest in Boston?
Expect to harvest from around late July (Jul 23–Aug 2) in Boston, based on its local frost dates. Confidence 80%.
How long is the growing season in Boston?
Boston has roughly 220 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 Boston's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.