When to plant sweet potato in Kansas City
Sweet potato is frost-tender, so every date keys off Kansas City's last spring frost of Apr 3.
Step 1 · Plant
Transplant outdoors
May 16 – Jun 6
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Aug 14 – Sep 13
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Kansas City's 212-day season leaves this much room.
Sweet potato on Kansas City'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 3
OCT 30
Common questions
When will sweet potato be ready to harvest in Kansas City?
Expect to harvest from around mid August (Aug 14–Sep 13) in Kansas City, based on its local frost dates. Confidence 78%.
When can I transplant sweet potato outdoors in Kansas City?
Transplant outdoors around mid May (May 16–Jun 6) in Kansas City, based on its local frost dates. Confidence 84%.
How long is the growing season in Kansas City?
Kansas City has roughly 212 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 Kansas City's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.