When to plant leeks in North Dakota

Plant out in Fargo

Apr 20–May 4

Across North Dakota the window opens between April 20 and May 7. Find your city below; the dates follow each town's own average last frost.

Start indoors, Fargo: Feb 9–Feb 23
Plant out, Fargo: Apr 20–May 4
Last frost, Fargo: May 4

Start seeds indoors 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Plant leeks deep in a trench and fill it in as they grow to get long white stems.

Leeks planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

FargoApr 20–May 4

BismarckApr 26–May 10

Grand ForksApr 26–May 10

MinotApr 26–May 10

West FargoApr 20–May 4

WillistonMay 7–May 21

DickinsonMay 6–May 20

MandanApr 29–May 13

Questions

When should I plant leeks in North Dakota?

In Fargo, plant out from April 20 to May 4. Across North Dakota the window opens between April 20 and May 7, depending on the local last frost.

How is this date worked out?

Start seeds indoors 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for North Dakota

Leeks in other states

Frost dates for every city in North Dakota