When to plant bush (snap) bean in Charleston
Bush (snap) bean is frost-tender, so every date keys off Charleston's last spring frost of Feb 8.
Step 1 · Sow
Direct sow outdoors
Mar 30 – Apr 20
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 19 – May 29
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Charleston's 310-day season leaves this much room.
Bush (snap) bean on Charleston'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
FEB 8
DEC 15
Common questions
When can I sow bush (snap) bean outdoors in Charleston?
Direct-sow around late March (Mar 30–Apr 20) in Charleston, based on its local frost dates. Confidence 86%.
When will bush (snap) bean be ready to harvest in Charleston?
Expect to harvest from around mid May (May 19–May 29) in Charleston, based on its local frost dates. Confidence 80%.
How long is the growing season in Charleston?
Charleston has roughly 310 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 Charleston's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.