When to plant bush (snap) bean in Cologne
Bush (snap) bean is frost-tender, so every date keys off Cologne's last spring frost of Apr 20.
Step 1 · Sow
Direct sow outdoors
Apr 27 – May 18
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 16 – Jun 26
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Cologne's 185-day season leaves this much room.
Bush (snap) bean on Cologne'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 20
OCT 22
Common questions
When can I sow bush (snap) bean outdoors in Cologne?
Direct-sow around late April (Apr 27–May 18) in Cologne, based on its local frost dates. Confidence 82%.
When will bush (snap) bean be ready to harvest in Cologne?
Expect to harvest from around mid June (Jun 16–Jun 26) in Cologne, based on its local frost dates. Confidence 74%.
How long is the growing season in Cologne?
Cologne has roughly 185 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 Cologne's frost dates.
Confidence 82/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.