When to plant sweet corn in Hamburg
Sweet corn is frost-tender, so every date keys off Hamburg's last spring frost of Apr 22.
Step 1 · Sow
Direct sow outdoors
Apr 29 – May 20
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 28 – Aug 7
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 100 d
Hamburg's 181-day season leaves this much room.
Sweet corn on Hamburg'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
HARVEST
APR 22
OCT 20
Common questions
When can I sow sweet corn outdoors in Hamburg?
Direct-sow around late April (Apr 29–May 20) in Hamburg, based on its local frost dates. Confidence 84%.
When will sweet corn be ready to harvest in Hamburg?
Expect to harvest from around late June (Jun 28–Aug 7) in Hamburg, based on its local frost dates. Confidence 76%.
How long is the growing season in Hamburg?
Hamburg has roughly 181 frost-free days, which is enough time to grow sweet corn to maturity outdoors.
The rule of thumb
Sow sweet corn 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 Hamburg's frost dates.
Confidence 84/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.