When to plant bush bean in Idaho
Idaho spans USDA zones 5a–7a, so the right time to plant bush bean shifts by weeks across the state. The window to sow seed directly outdoors runs from about April 13 in Lewiston to May 24 in Garden City — below are local dates for 25 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Boise City | 7a | April 24 | October 21 | May 1 – June 5 |
| Meridian | 7a | April 24 | October 21 | May 1 – June 5 |
| Nampa | 7a | April 29 | October 13 | May 6 – June 10 |
| Idaho Falls | 5b | May 9 | October 1 | May 16 – June 20 |
| Caldwell | 7a | April 29 | October 13 | May 6 – June 10 |
| Pocatello | 6a | May 2 | October 11 | May 9 – June 13 |
| Coeur d'Alene | 6b | April 22 | October 18 | April 29 – June 3 |
| Twin Falls | 7a | April 30 | October 9 | May 7 – June 11 |
Bush Bean in Idaho: FAQ
When can I plant bush bean in Idaho?
Across Idaho, the time to direct-sow bush bean spans roughly April 13 in Lewiston to May 24 in Garden City, each following that city's local frost dates.
Does the bush bean planting date vary across Idaho?
Yes. Idaho publishes 25 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 Idaho?
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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