When to plant sweet potatoes in Utah

Sweet potatoes
Plant out in Salt Lake City
Apr 21–May 5

Across Utah the window opens between April 4 and June 23. Find your city below; the dates follow each town's own average last frost.

Plant out, Salt Lake City
Apr 21–May 5
Last sowing for a harvest
Jun 27
Last frost, Salt Lake City
Mar 31

Plant out 3–5 weeks after the last frost. Set out slips when the soil is warm, around 65°F. They need a long, hot season.

Sweet potatoes planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
Salt Lake CityApr 21–May 5
West Valley CityApr 29–May 13
West JordanMay 9–May 23
ProvoMay 9–May 23
St. GeorgeApr 4–Apr 18
LehiMay 21–Jun 4
OremMay 10–May 24
SandyMay 20–Jun 3
OgdenMay 12–May 26
South JordanMay 9–May 23
LaytonMay 20–Jun 3
Eagle MountainJun 23–Jul 7
MillcreekMay 16–May 30
HerrimanMay 9–May 23
Saratoga SpringsMay 21–Jun 4
TaylorsvilleApr 21–May 5
LoganMay 29–Jun 12
MurrayMay 20–Jun 3
DraperMay 9–May 23
Spanish ForkMay 16–May 30
RivertonMay 9–May 23
BountifulMay 16–May 30
TooeleMay 23–Jun 6
Cedar CityMay 25–Jun 8
American ForkMay 8–May 22
SyracuseMay 13–May 27
RoyMay 13–May 27
Pleasant GroveMay 8–May 22
WashingtonApr 4–Apr 18
MidvaleMay 20–Jun 3
All 47 cities
CityPlant outLast frost
Salt Lake CityApr 21 to May 5Mar 31
West Valley CityApr 29 to May 13Apr 8
West JordanMay 9 to May 23Apr 18
ProvoMay 9 to May 23Apr 18
St. GeorgeApr 4 to Apr 18Mar 14
LehiMay 21 to Jun 4Apr 30
OremMay 10 to May 24Apr 19
SandyMay 20 to Jun 3Apr 29
OgdenMay 12 to May 26Apr 21
South JordanMay 9 to May 23Apr 18
LaytonMay 20 to Jun 3Apr 29
Eagle MountainJun 23 to Jul 7Jun 2
MillcreekMay 16 to May 30Apr 25
HerrimanMay 9 to May 23Apr 18
Saratoga SpringsMay 21 to Jun 4Apr 30
TaylorsvilleApr 21 to May 5Mar 31
LoganMay 29 to Jun 12May 8
MurrayMay 20 to Jun 3Apr 29
DraperMay 9 to May 23Apr 18
Spanish ForkMay 16 to May 30Apr 25
RivertonMay 9 to May 23Apr 18
BountifulMay 16 to May 30Apr 25
TooeleMay 23 to Jun 6May 2
Cedar CityMay 25 to Jun 8May 4
American ForkMay 8 to May 22Apr 17
SyracuseMay 13 to May 27Apr 22
RoyMay 13 to May 27Apr 22
Pleasant GroveMay 8 to May 22Apr 17
WashingtonApr 4 to Apr 18Mar 14
MidvaleMay 20 to Jun 3Apr 29
SpringvilleMay 9 to May 23Apr 18
KearnsApr 29 to May 13Apr 8
MagnaApr 24 to May 8Apr 3
ClearfieldMay 20 to Jun 3Apr 29
KaysvilleMay 10 to May 24Apr 19
Cottonwood HeightsMay 20 to Jun 3Apr 29
HolladayMay 20 to Jun 3Apr 29
South Salt LakeApr 21 to May 5Mar 31
FarmingtonMay 10 to May 24Apr 19
HurricaneApr 22 to May 6Apr 1
West HavenMay 13 to May 27Apr 22
PaysonMay 25 to Jun 8May 4
ClintonMay 13 to May 27Apr 22
North Salt LakeMay 15 to May 29Apr 24
North OgdenMay 10 to May 24Apr 19
HighlandMay 24 to Jun 7May 3
Brigham CityMay 26 to Jun 9May 5

In Eagle Mountain the frost-free season is shorter than sweet potatoes need. Start plants indoors and pick early varieties.

Questions

When should I plant sweet potatoes in Utah?

In Salt Lake City, plant out from April 21 to May 5. Across Utah the window opens between April 4 and June 23, depending on the local last frost.

How is this date worked out?

Plant out 3–5 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

Is the season long enough for sweet potatoes everywhere in Utah?

Not quite. In Eagle Mountain the frost-free season is shorter than the time sweet potatoes need to ripen. Start plants indoors and pick an early variety.

More for Utah

Sweet potatoes in other states

Frost dates for every city in Utah