When to plant Leeks in Minnesota

In spring, from Mar 15 – Apr 15 in Bloomington to May 1 – 20 in North Branch.

In fall, May 1 – June 1 in Hibbing.

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

Leeks planting dates by place in Minnesota
PlaceSpringFall
Albert LeaApr 1 – May 1Spring-planted
AlexandriaApr 1 – May 1Spring-planted
AndoverApr 1 – May 1Spring-planted
AnokaApr 1 – May 1Spring-planted
Apple ValleyApr 1 – May 1Spring-planted
AustinApr 1 – May 1Spring-planted
BemidjiMay 1 – 20Spring-planted
Big LakeApr 1 – May 1Spring-planted
BlaineApr 1 – May 1Spring-planted
BloomingtonMar 15 – Apr 15Spring-planted
BrainerdApr 15 – May 15Spring-planted
Brooklyn CenterApr 1 – May 1Spring-planted
Brooklyn ParkApr 1 – May 1Spring-planted
BuffaloApr 1 – May 1Spring-planted
BurnsvilleApr 1 – May 1Spring-planted
CambridgeApr 1 – May 1Spring-planted
ChamplinApr 1 – May 1Spring-planted
ChanhassenApr 1 – May 1Spring-planted
ChaskaApr 1 – May 1Spring-planted
CloquetMay 1 – 15Spring-planted
Columbia HeightsMar 15 – Apr 15Spring-planted
Coon RapidsApr 1 – May 1Spring-planted
Cottage GroveMar 15 – Apr 15Spring-planted
CrystalApr 1 – May 1Spring-planted
DaytonApr 1 – May 1Spring-planted
Detroit LakesApr 15 – May 15Spring-planted
DuluthApr 15 – May 15Spring-planted
EaganMar 15 – Apr 15Spring-planted
East BethelApr 1 – May 1Spring-planted
Eden PrairieMar 15 – Apr 15Spring-planted
EdinaMar 15 – Apr 15Spring-planted
Elk RiverApr 1 – May 1Spring-planted
FairmontMar 15 – Apr 15Spring-planted
FaribaultApr 1 – May 1Spring-planted
FarmingtonApr 1 – May 1Spring-planted
Fergus FallsApr 1 – May 1Spring-planted
Forest LakeApr 1 – May 1Spring-planted
FridleyApr 1 – May 1Spring-planted
Golden ValleyApr 1 – May 1Spring-planted
Grand RapidsMay 1 – 20Spring-planted
Ham LakeApr 1 – May 1Spring-planted
HastingsMar 15 – Apr 15Spring-planted
HermantownMay 1 – 20Spring-planted
HibbingMay 1 – 15May 1 – June 1
HopkinsApr 1 – May 1Spring-planted
HugoApr 1 – May 1Spring-planted
HutchinsonApr 1 – May 1Spring-planted
Inver Grove HeightsMar 15 – Apr 15Spring-planted
Lake ElmoApr 1 – May 1Spring-planted
LakevilleApr 1 – May 1Spring-planted
Lino LakesMar 15 – Apr 15Spring-planted
Little CanadaMar 15 – Apr 15Spring-planted
MankatoApr 1 – May 1Spring-planted
Maple GroveApr 1 – May 1Spring-planted
MaplewoodMar 15 – Apr 15Spring-planted
MarshallApr 1 – May 1Spring-planted
Mendota HeightsMar 15 – Apr 15Spring-planted
MinneapolisMar 15 – Apr 15Spring-planted
MinnetonkaApr 1 – May 1Spring-planted
MonticelloApr 1 – May 1Spring-planted
MoorheadApr 1 – May 1Spring-planted
Mounds ViewMar 15 – Apr 15Spring-planted
New BrightonApr 1 – May 1Spring-planted
New HopeApr 1 – May 1Spring-planted
New UlmApr 1 – May 1Spring-planted
North BranchMay 1 – 20Spring-planted
North MankatoApr 1 – May 1Spring-planted
North St. PaulApr 1 – May 1Spring-planted
NorthfieldApr 1 – May 1Spring-planted
OakdaleApr 1 – May 1Spring-planted
OtsegoApr 1 – May 1Spring-planted
OwatonnaApr 1 – May 1Spring-planted
PlymouthApr 1 – May 1Spring-planted
Prior LakeMar 15 – Apr 15Spring-planted
RamseyApr 1 – May 1Spring-planted
Red WingMar 15 – Apr 15Spring-planted
RichfieldMar 15 – Apr 15Spring-planted
RobbinsdaleApr 1 – May 1Spring-planted
RochesterApr 1 – May 1Spring-planted
RogersApr 1 – May 1Spring-planted
RosemountApr 1 – May 1Spring-planted
RosevilleApr 1 – May 1Spring-planted
SartellApr 1 – May 1Spring-planted
Sauk RapidsApr 15 – May 15Spring-planted
SavageMar 15 – Apr 15Spring-planted
ShakopeeMar 15 – Apr 15Spring-planted
ShoreviewMar 15 – Apr 15Spring-planted
South St. PaulMar 15 – Apr 15Spring-planted
St. CloudApr 15 – May 15Spring-planted
St. Louis ParkApr 1 – May 1Spring-planted
St. MichaelApr 1 – May 1Spring-planted
St. PaulMar 15 – Apr 15Spring-planted
St. PeterApr 1 – May 1Spring-planted
StillwaterApr 1 – May 1Spring-planted
Vadnais HeightsMar 15 – Apr 15Spring-planted
VictoriaApr 1 – May 1Spring-planted
WaconiaApr 1 – May 1Spring-planted
West St. PaulMar 15 – Apr 15Spring-planted
White Bear LakeMar 15 – Apr 15Spring-planted
WillmarApr 1 – May 1Spring-planted
WinonaMar 15 – Apr 15Spring-planted
WoodburyApr 1 – May 1Spring-planted
WorthingtonApr 1 – May 1Spring-planted

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 leeks.