When to plant horseradish in Minnesota
Minnesota spans USDA zones 3b–5a, so the right time to plant horseradish 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 |
Horseradish in Minnesota: FAQ
When can I plant horseradish in Minnesota?
Across Minnesota, the time to transplant horseradish spans roughly March 24 in Winona to May 8 in Hibbing, each following that city's local frost dates.
Does the horseradish planting date vary across Minnesota?
Yes. Minnesota publishes 102 cities with their own frost dates, so the right horseradish planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
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