When to plant spinach in Utah
Utah spans USDA zones 5b–8b, so the right time to plant spinach shifts by weeks across the state. The window to sow seed directly outdoors runs from about January 31 in St. George to April 23 in Heber — below are local dates for 67 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Salt Lake City | 7b | March 31 | November 8 | February 17 – March 17 |
| West Valley City | 7b | April 8 | October 31 | February 25 – March 25 |
| West Jordan | 7b | April 18 | October 22 | March 7 – April 4 |
| Provo | 7a | April 18 | October 21 | March 7 – April 4 |
| St. George | 8b | March 14 | November 10 | January 31 – February 28 |
| Orem | 7a | April 19 | October 19 | March 8 – April 5 |
| Sandy | 7b | April 29 | October 22 | March 18 – April 15 |
| Ogden | 6b | April 21 | October 23 | March 10 – April 7 |
Spinach in Utah: FAQ
When can I plant spinach in Utah?
Across Utah, the time to direct-sow spinach spans roughly January 31 in St. George to April 23 in Heber, each following that city's local frost dates.
Does the spinach planting date vary across Utah?
Yes. Utah publishes 67 cities with their own frost dates, so the right 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 spinach take to grow in Utah?
Spinach takes about 40–50 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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