When to plant carrot in Idaho
Idaho spans USDA zones 5a–7a, so the right time to plant carrot shifts by weeks across the state. The window to sow seed directly outdoors runs from about March 16 in Lewiston to April 26 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 | April 3 – May 15 |
| Meridian | 7a | April 24 | October 21 | April 3 – May 15 |
| Nampa | 7a | April 29 | October 13 | April 8 – May 20 |
| Idaho Falls | 5b | May 9 | October 1 | April 18 – May 30 |
| Caldwell | 7a | April 29 | October 13 | April 8 – May 20 |
| Pocatello | 6a | May 2 | October 11 | April 11 – May 23 |
| Coeur d'Alene | 6b | April 22 | October 18 | April 1 – May 13 |
| Twin Falls | 7a | April 30 | October 9 | April 9 – May 21 |
Carrot in Idaho: FAQ
When can I plant carrot in Idaho?
Across Idaho, the time to direct-sow carrot spans roughly March 16 in Lewiston to April 26 in Garden City, each following that city's local frost dates.
Does the carrot planting date vary across Idaho?
Yes. Idaho publishes 25 cities with their own frost dates, so the right carrot 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 carrot take to grow in Idaho?
Carrot takes about 60–80 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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