When to plant sweet corn in Fresno
Sweet corn is frost-tender, so every date keys off Fresno's last spring frost of Jan 31.
Step 1 · Sow
Direct sow outdoors
Apr 22 – May 13
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 21 – Jul 31
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 100 d
Fresno's 313-day season leaves this much room.
Sweet corn on Fresno'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
HARVEST
JAN 31
DEC 5
Common questions
When can I sow sweet corn outdoors in Fresno?
Direct-sow around late April (Apr 22–May 13) in Fresno, based on its local frost dates. Confidence 84%.
When will sweet corn be ready to harvest in Fresno?
Expect to harvest from around late June (Jun 21–Jul 31) in Fresno, based on its local frost dates. Confidence 78%.
How long is the growing season in Fresno?
Fresno has roughly 313 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 Fresno's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.