When to plant sweet corn in Austin
Sweet corn is frost-tender, so every date keys off Austin's last spring frost of Feb 15.
Step 1 · Sow
Direct sow outdoors
Mar 15 – Apr 5
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 14 – Jun 23
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 100 d
Austin's 286-day season leaves this much room.
Sweet corn on Austin'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 15
DEC 2
Common questions
When can I sow sweet corn outdoors in Austin?
Direct-sow around mid March (Mar 15–Apr 5) in Austin, based on its local frost dates. Confidence 88%.
When will sweet corn be ready to harvest in Austin?
Expect to harvest from around mid May (May 14–Jun 23) in Austin, based on its local frost dates. Confidence 79%.
How long is the growing season in Austin?
Austin has roughly 286 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 Austin's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.