When to plant bush bean in North Dakota
North Dakota spans USDA zones 4a–4b, so the right time to plant bush bean shifts by weeks across the state. The window to sow seed directly outdoors runs from about May 11 in Fargo to May 28 in Williston — below are local dates for 9 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Fargo | 4a | May 4 | October 2 | May 11 – June 15 |
| Bismarck | 4a | May 10 | September 30 | May 17 – June 21 |
| Grand Forks | 4a | May 10 | October 1 | May 17 – June 21 |
| Minot | 4a | May 10 | October 1 | May 17 – June 21 |
| West Fargo | 4a | May 4 | October 2 | May 11 – June 15 |
| Williston | 4a | May 21 | September 21 | May 28 – July 2 |
| Dickinson | 4b | May 20 | September 22 | May 27 – July 1 |
| Mandan | 4a | May 13 | September 27 | May 20 – June 24 |
Bush Bean in North Dakota: FAQ
When can I plant bush bean in North Dakota?
Across North Dakota, the time to direct-sow bush bean spans roughly May 11 in Fargo to May 28 in Williston, each following that city's local frost dates.
Does the bush bean planting date vary across North Dakota?
Yes. North Dakota publishes 9 cities with their own frost dates, so the right bush bean 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 bush bean take to grow in North Dakota?
Bush Bean takes about 50–60 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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