When to plant sweet corn in Gilbert
Sweet corn is frost-tender, so every date keys off Gilbert's last spring frost of Feb 6.
Step 1 · Sow
Direct sow outdoors
Mar 14 – Apr 4
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 13 – Jun 22
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 100 d
Gilbert's 303-day season leaves this much room.
Sweet corn on Gilbert'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 6
DEC 6
Common questions
When can I sow sweet corn outdoors in Gilbert?
Direct-sow around mid March (Mar 14–Apr 4) in Gilbert, based on its local frost dates. Confidence 81%.
When will sweet corn be ready to harvest in Gilbert?
Expect to harvest from around mid May (May 13–Jun 22) in Gilbert, based on its local frost dates. Confidence 75%.
How long is the growing season in Gilbert?
Gilbert has roughly 303 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 Gilbert's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.