When to plant sweet potato in Amarillo
Sweet potato is frost-tender, so every date keys off Amarillo's last spring frost of Apr 16.
Step 1 · Plant
Transplant outdoors
May 22 – Jun 12
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Aug 20 – Sep 19
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Amarillo's 187-day season leaves this much room.
Sweet potato 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
APR 16
OCT 24
Common questions
When will sweet potato be ready to harvest in Amarillo?
Expect to harvest from around mid August (Aug 20–Sep 19) in Amarillo, based on its local frost dates. Confidence 80%.
When can I transplant sweet potato outdoors in Amarillo?
Transplant outdoors around late May (May 22–Jun 12) in Amarillo, based on its local frost dates. Confidence 89%.
How long is the growing season in Amarillo?
Amarillo has roughly 187 frost-free days, which is enough time to grow sweet potato to maturity outdoors.
The rule of thumb
Sow sweet potato 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.