When to plant sweet potato in Cheyenne
Sweet potato is frost-tender, so every date keys off Cheyenne's last spring frost of May 13.
Step 1 · Plant
Transplant outdoors
Jun 30 – Jul 21
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Sep 28 – Oct 28
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Cheyenne's 136-day season leaves this much room.
Sweet potato on Cheyenne'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
MAY 13
OCT 2
Common questions
When will sweet potato be ready to harvest in Cheyenne?
Expect to harvest from around late September (Sep 28–Oct 28) in Cheyenne, based on its local frost dates. Confidence 80%.
When can I transplant sweet potato outdoors in Cheyenne?
Transplant outdoors around late June (Jun 30–Jul 21) in Cheyenne, based on its local frost dates. Confidence 86%.
How long is the growing season in Cheyenne?
Cheyenne has roughly 136 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 Cheyenne's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.