When to plant sweet corn in Saint Paul
Sweet corn is frost-tender, so every date keys off Saint Paul's last spring frost of Apr 22.
Step 1 · Sow
Direct sow outdoors
Jun 2 – Jun 23
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Aug 1 – Sep 10
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 100 d
Saint Paul's 174-day season leaves this much room.
Sweet corn on Saint Paul'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 12
Common questions
When can I sow sweet corn outdoors in Saint Paul?
Direct-sow around early June (Jun 2–Jun 23) in Saint Paul, based on its local frost dates. Confidence 81%.
When will sweet corn be ready to harvest in Saint Paul?
Expect to harvest from around early August (Aug 1–Sep 10) in Saint Paul, based on its local frost dates. Confidence 76%.
How long is the growing season in Saint Paul?
Saint Paul has roughly 174 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 Saint Paul's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.