When to plant new zealand spinach in Idaho
Idaho spans USDA zones 5a–7a, so the right time to plant new zealand spinach 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 – May 15 |
| Meridian | 7a | April 24 | October 21 | May 1 – May 15 |
| Nampa | 7a | April 29 | October 13 | May 6 – May 20 |
| Idaho Falls | 5b | May 9 | October 1 | May 16 – May 30 |
| Caldwell | 7a | April 29 | October 13 | May 6 – May 20 |
| Pocatello | 6a | May 2 | October 11 | May 9 – May 23 |
| Coeur d'Alene | 6b | April 22 | October 18 | April 29 – May 13 |
| Twin Falls | 7a | April 30 | October 9 | May 7 – May 21 |
New Zealand Spinach in Idaho: FAQ
When can I plant new zealand spinach in Idaho?
Across Idaho, the time to direct-sow new zealand spinach spans roughly April 13 in Lewiston to May 24 in Garden City, each following that city's local frost dates.
Does the new zealand spinach planting date vary across Idaho?
Yes. Idaho publishes 25 cities with their own frost dates, so the right new zealand spinach 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 new zealand spinach take to grow in Idaho?
New Zealand Spinach takes about 55–70 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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