When to plant sweet potato in Salt Lake City
Sweet potato is frost-tender, so every date keys off Salt Lake City's last spring frost of Apr 13.
Step 1 · Plant
Transplant outdoors
Jun 8 – Jun 29
Once frost risk has passed and nights stay mild.
Step 2 · Harvest
Harvest window
Sep 6 – Oct 6
Picking runs until conditions turn against the crop.
Window
Days to maturity
90 – 120 d
Salt Lake City's 194-day season leaves this much room.
Sweet potato on Salt Lake 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 13
OCT 26
Common questions
When will sweet potato be ready to harvest in Salt Lake City?
Expect to harvest from around early September (Sep 6–Oct 6) in Salt Lake City, based on its local frost dates. Confidence 80%.
When can I transplant sweet potato outdoors in Salt Lake City?
Transplant outdoors around early June (Jun 8–Jun 29) in Salt Lake City, based on its local frost dates. Confidence 86%.
How long is the growing season in Salt Lake City?
Salt Lake City has roughly 194 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 Salt Lake City's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.