When to plant Radishes in Indiana

In spring, from Feb 15 – May 1 in Clarksville to Mar 20 – May 10 in West Lafayette.

In fall, from July 15 – Sept 15 in Auburn to Sept 1 – Nov 15 in Sellersburg.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Radishes planting dates by place in Indiana
PlaceSpringFall
AndersonMar 10 – May 10Aug 1 – Oct 1
AuburnMar 20 – May 10July 15 – Sept 15
AvonMar 1 – May 1Aug 15 – Oct 15
BargersvilleMar 10 – May 10Aug 1 – Oct 1
BedfordMar 10 – May 10Aug 1 – Oct 1
Beech GroveMar 10 – May 10Aug 1 – Oct 1
BloomingtonMar 1 – May 1Aug 15 – Oct 15
BlufftonMar 10 – May 10Aug 1 – Oct 1
BrownsburgMar 1 – May 1Aug 15 – Oct 15
CarmelMar 10 – May 10Aug 1 – Oct 1
Cedar LakeMar 20 – May 10Aug 1 – Oct 1
ChestertonMar 10 – May 10Aug 15 – Oct 15
ClarksvilleFeb 15 – May 1Sept 1 – Nov 15Now
Columbia CityMar 20 – May 10Aug 1 – Oct 1
ColumbusMar 1 – May 1Aug 1 – Oct 1
ConnersvilleMar 20 – May 10July 15 – Sept 15
CrawfordsvilleMar 20 – May 10July 15 – Sept 15
Crown PointMar 20 – May 10Aug 1 – Oct 1
DanvilleMar 1 – May 1Aug 15 – Oct 15
DecaturMar 10 – May 10Aug 1 – Oct 1
DyerMar 10 – May 10Aug 1 – Oct 1
East ChicagoMar 10 – May 10Aug 1 – Oct 1
ElkhartMar 20 – May 10Aug 1 – Oct 1
EvansvilleFeb 15 – May 1Sept 1 – Nov 15Now
FishersMar 10 – May 10Aug 1 – Oct 1
Fort WayneMar 10 – May 10Aug 1 – Oct 1
FrankfortMar 10 – May 10Aug 1 – Oct 1
FranklinMar 10 – May 10Aug 1 – Oct 1
GaryMar 10 – May 10Aug 15 – Oct 15
GoshenMar 20 – May 10Aug 1 – Oct 1
GreenfieldMar 10 – May 10Aug 1 – Oct 1
GreensburgMar 1 – May 1Aug 15 – Oct 15
GreenwoodMar 10 – May 10Aug 1 – Oct 1
GriffithMar 10 – May 10Aug 1 – Oct 1
HammondMar 10 – May 10Aug 1 – Oct 1
HighlandMar 10 – May 10Aug 1 – Oct 1
HobartMar 10 – May 10Aug 1 – Oct 1
HuntertownMar 20 – May 10July 15 – Sept 15
HuntingtonMar 20 – May 10July 15 – Sept 15
IndianapolisMar 10 – May 10Aug 1 – Oct 1
JasperMar 1 – May 1Aug 15 – Oct 15
JeffersonvilleFeb 15 – May 1Sept 1 – Nov 15Now
KendallvilleMar 20 – May 10Aug 1 – Oct 1
KokomoMar 20 – May 10Aug 1 – Oct 1
La PorteMar 10 – May 10Aug 15 – Oct 15
LafayetteMar 20 – May 10Aug 1 – Oct 1
Lake StationMar 10 – May 10Aug 15 – Oct 15
LawrenceMar 10 – May 10Aug 15 – Oct 15
LebanonMar 10 – May 10Aug 1 – Oct 1
LogansportMar 10 – May 10Aug 1 – Oct 1
LowellMar 20 – May 10Aug 1 – Oct 1
MadisonMar 1 – May 1Aug 15 – Oct 15
MarionMar 20 – May 10Aug 1 – Oct 1
MartinsvilleMar 10 – May 10July 15 – Sept 15
McCordsvilleMar 10 – May 10Aug 15 – Oct 15
MerrillvilleMar 10 – May 10Aug 1 – Oct 1
Michigan CityMar 10 – May 10Aug 15 – Oct 15
MishawakaMar 10 – May 10Aug 1 – Oct 1
MooresvilleMar 1 – May 1Aug 15 – Oct 15
MuncieMar 10 – May 10Aug 1 – Oct 1
MunsterMar 10 – May 10Aug 1 – Oct 1
New AlbanyFeb 15 – May 1Sept 1 – Nov 15Now
New CastleMar 20 – May 10Aug 1 – Oct 1
New HavenMar 20 – May 10Aug 1 – Oct 1
NoblesvilleMar 10 – May 10Aug 1 – Oct 1
PeruMar 10 – May 10Aug 1 – Oct 1
PlainfieldMar 1 – May 1Aug 15 – Oct 15
PlymouthMar 10 – May 10Aug 1 – Oct 1
PortageMar 10 – May 10Aug 15 – Oct 15
RichmondMar 10 – May 10Aug 1 – Oct 1
ScherervilleMar 10 – May 10Aug 1 – Oct 1
SellersburgFeb 15 – May 1Sept 1 – Nov 15Now
SeymourMar 10 – May 10Aug 1 – Oct 1
ShelbyvilleMar 10 – May 10Aug 1 – Oct 1
South BendMar 10 – May 10Aug 1 – Oct 1
SpeedwayMar 1 – May 1Aug 15 – Oct 15
St. JohnMar 10 – May 10Aug 1 – Oct 1
Terre HauteMar 1 – May 1Aug 1 – Oct 1
ValparaisoMar 10 – May 10Aug 1 – Oct 1
VincennesMar 1 – May 1Aug 15 – Oct 15
WabashMar 10 – May 10Aug 1 – Oct 1
WarsawMar 20 – May 10Aug 1 – Oct 1
WashingtonMar 1 – May 1Aug 1 – Oct 1
West LafayetteMar 20 – May 10Aug 1 – Oct 1
WestfieldMar 10 – May 10Aug 1 – Oct 1
WhitestownMar 10 – May 10Aug 1 – Oct 1
YorktownMar 10 – May 10Aug 1 – Oct 1
ZionsvilleMar 10 – May 10Aug 1 – Oct 1

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for radishes.