When to plant bok choy in Idaho
Idaho spans USDA zones 5a–7a, so the right time to plant bok choy shifts by weeks across the state. The window to transplant seedlings 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 | Transplant out |
|---|---|---|---|---|
| Boise City | 7a | April 24 | October 21 | April 3 – April 24 |
| Meridian | 7a | April 24 | October 21 | April 3 – April 24 |
| Nampa | 7a | April 29 | October 13 | April 8 – April 29 |
| Idaho Falls | 5b | May 9 | October 1 | April 18 – May 9 |
| Caldwell | 7a | April 29 | October 13 | April 8 – April 29 |
| Pocatello | 6a | May 2 | October 11 | April 11 – May 2 |
| Coeur d'Alene | 6b | April 22 | October 18 | April 1 – April 22 |
| Twin Falls | 7a | April 30 | October 9 | April 9 – April 30 |
Bok Choy in Idaho: FAQ
When can I plant bok choy in Idaho?
Across Idaho, the time to transplant bok choy spans roughly March 16 in Lewiston to April 26 in Garden City, each following that city's local frost dates.
Does the bok choy planting date vary across Idaho?
Yes. Idaho publishes 25 cities with their own frost dates, so the right bok choy 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 bok choy take to grow in Idaho?
Bok Choy 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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