When to plant leek in Minnesota
Minnesota spans USDA zones 3b–5a, so the right time to plant leek shifts by weeks across the state. The window to transplant seedlings outdoors runs from about March 24 in Winona to May 8 in Hibbing — below are local dates for 102 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Minneapolis | 5a | April 23 | October 16 | March 26 – April 9 |
| St. Paul | 5a | April 24 | October 16 | March 27 – April 10 |
| Rochester | 4b | April 30 | October 6 | April 2 – April 16 |
| Bloomington | 5a | April 23 | October 18 | March 26 – April 9 |
| Duluth | 4b | May 14 | October 12 | April 16 – April 30 |
| Brooklyn Park | 5a | April 30 | October 8 | April 2 – April 16 |
| Plymouth | 5a | April 29 | October 12 | April 1 – April 15 |
| Woodbury | 5a | April 26 | October 12 | March 29 – April 12 |
Leek in Minnesota: FAQ
When can I plant leek in Minnesota?
Across Minnesota, the time to transplant leek spans roughly March 24 in Winona to May 8 in Hibbing, each following that city's local frost dates.
Does the leek planting date vary across Minnesota?
Yes. Minnesota publishes 102 cities with their own frost dates, so the right leek planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does leek take to grow in Minnesota?
Leek takes about 100–120 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
Never miss a window in your area
An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.