When to plant gai lan (chinese broccoli) in Idaho
Idaho spans USDA zones 5a–7a, so the right time to plant gai lan (chinese broccoli) 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 8 |
| Meridian | 7a | April 24 | October 21 | April 3 – May 8 |
| Nampa | 7a | April 29 | October 13 | April 8 – May 13 |
| Idaho Falls | 5b | May 9 | October 1 | April 18 – May 23 |
| Caldwell | 7a | April 29 | October 13 | April 8 – May 13 |
| Pocatello | 6a | May 2 | October 11 | April 11 – May 16 |
| Coeur d'Alene | 6b | April 22 | October 18 | April 1 – May 6 |
| Twin Falls | 7a | April 30 | October 9 | April 9 – May 14 |
Gai Lan (Chinese Broccoli) in Idaho: FAQ
When can I plant gai lan (chinese broccoli) in Idaho?
Across Idaho, the time to direct-sow gai lan (chinese broccoli) spans roughly March 16 in Lewiston to April 26 in Garden City, each following that city's local frost dates.
Does the gai lan (chinese broccoli) planting date vary across Idaho?
Yes. Idaho publishes 25 cities with their own frost dates, so the right gai lan (chinese broccoli) 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 gai lan (chinese broccoli) take to grow in Idaho?
Gai Lan (Chinese Broccoli) takes about 50–70 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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