When to Plant Sweet Potatoes in Indiana

In a typical Indiana location, plant outdoors May 6 – May 20. Across the state, the outdoor planting window starts as early as Apr 12 in Evansville and as late as May 16 in Auburn.

Method Plant out (slips, crowns, or tubers)
Days to maturity 90–120 days

Set out slips 2-4 weeks after last frost once soil is thoroughly warm (65F+); very frost/cold sensitive.

Sweet Potatoes Planting Dates by City

CityPlant outdoors
IndianapolisMay 4 – May 18
Fort WayneMay 8 – May 22
EvansvilleApr 12 – Apr 26
South BendMay 7 – May 21
CarmelMay 5 – May 19
BloomingtonApr 29 – May 13
HammondMay 7 – May 21
GaryMay 6 – May 20
FishersMay 5 – May 19
LafayetteMay 10 – May 24
MuncieApr 30 – May 14
Terre HauteApr 29 – May 13
NoblesvilleMay 5 – May 19
KokomoMay 11 – May 25
GreenwoodMay 4 – May 18
AndersonMay 3 – May 17
ElkhartMay 10 – May 24
MishawakaMay 7 – May 21
LawrenceMay 2 – May 16
JeffersonvilleApr 14 – Apr 28
ColumbusApr 25 – May 9
West LafayetteMay 10 – May 24
PortageMay 6 – May 20
WestfieldMay 5 – May 19
New AlbanyApr 14 – Apr 28
RichmondMay 8 – May 22
MerrillvilleMay 6 – May 20
GoshenMay 10 – May 24
ValparaisoMay 6 – May 20
Michigan CityMay 3 – May 17

Showing the 30 most populous of 88 Indiana cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Indiana cities.

Frequently Asked Questions

When should I plant sweet potatoes in Indiana?

In a typical Indiana location, plant outdoors May 6 – May 20. Across the state, the outdoor planting window starts as early as Apr 12 in Evansville and as late as May 16 in Auburn.

When is the last frost in Indiana?

The average last spring frost in Indiana ranges from March 29 in Evansville to May 2 in Auburn, based on NOAA 1991–2020 climate normals.

How long do sweet potatoes take to grow?

Sweet Potatoes typically take 90–120 days from planting to harvest. Set out slips 2-4 weeks after last frost once soil is thoroughly warm (65F+); very frost/cold sensitive.

Other Crops in Indiana

When to plant sweet potatoes in other states

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