When to plant sweet corn in Jacksonville
Sweet corn is frost-tender, so every date keys off Jacksonville's last spring frost of Feb 9.
Step 1 · Sow
Direct sow outdoors
Mar 7 – Mar 28
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 6 – Jun 15
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 100 d
Jacksonville's 311-day season leaves this much room.
Sweet corn on Jacksonville'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
FEB 9
DEC 17
Common questions
When can I sow sweet corn outdoors in Jacksonville?
Direct-sow around early March (Mar 7–Mar 28) in Jacksonville, based on its local frost dates. Confidence 84%.
When will sweet corn be ready to harvest in Jacksonville?
Expect to harvest from around early May (May 6–Jun 15) in Jacksonville, based on its local frost dates. Confidence 76%.
How long is the growing season in Jacksonville?
Jacksonville has roughly 311 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 Jacksonville's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.