When to plant kohlrabi in North Dakota
North Dakota spans USDA zones 4a–4b, so the right time to plant kohlrabi shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 6 in Fargo to April 23 in Williston — below are local dates for 9 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Fargo | 4a | May 4 | October 2 | April 6 – April 20 |
| Bismarck | 4a | May 10 | September 30 | April 12 – April 26 |
| Grand Forks | 4a | May 10 | October 1 | April 12 – April 26 |
| Minot | 4a | May 10 | October 1 | April 12 – April 26 |
| West Fargo | 4a | May 4 | October 2 | April 6 – April 20 |
| Williston | 4a | May 21 | September 21 | April 23 – May 7 |
| Dickinson | 4b | May 20 | September 22 | April 22 – May 6 |
| Mandan | 4a | May 13 | September 27 | April 15 – April 29 |
Kohlrabi in North Dakota: FAQ
When can I plant kohlrabi in North Dakota?
Across North Dakota, the time to transplant kohlrabi spans roughly April 6 in Fargo to April 23 in Williston, each following that city's local frost dates.
Does the kohlrabi planting date vary across North Dakota?
Yes. North Dakota publishes 9 cities with their own frost dates, so the right kohlrabi 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 kohlrabi take to grow in North Dakota?
Kohlrabi takes about 45–60 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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