When to plant bush (snap) bean in Philadelphia
Bush (snap) bean is frost-tender, so every date keys off Philadelphia's last spring frost of Mar 28.
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
Philadelphia's 234-day season leaves this much room.
Bush (snap) bean on Philadelphia'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 28
NOV 22
Common questions
When can I sow bush (snap) bean outdoors in Philadelphia?
Direct-sow around late April (Apr 30–May 21) in Philadelphia, based on its local frost dates. Confidence 84%.
When will bush (snap) bean be ready to harvest in Philadelphia?
Expect to harvest from around mid June (Jun 19–Jun 29) in Philadelphia, based on its local frost dates. Confidence 78%.
How long is the growing season in Philadelphia?
Philadelphia 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 Philadelphia's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.