When to plant sweet corn in Amarillo
Sweet corn is frost-tender, so every date keys off Amarillo's last spring frost of Apr 16.
Step 1 · Sow
Direct sow outdoors
May 14 – Jun 4
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 13 – Aug 22
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 100 d
Amarillo's 187-day season leaves this much room.
Sweet corn on Amarillo'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 16
OCT 24
Common questions
When can I sow sweet corn outdoors in Amarillo?
Direct-sow around mid May (May 14–Jun 4) in Amarillo, based on its local frost dates. Confidence 86%.
When will sweet corn be ready to harvest in Amarillo?
Expect to harvest from around mid July (Jul 13–Aug 22) in Amarillo, based on its local frost dates. Confidence 80%.
How long is the growing season in Amarillo?
Amarillo has roughly 187 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 Amarillo's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.