When to plant asparagus in Wyoming
Wyoming spans USDA zones 4a–5b, so the right time to plant asparagus shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 12 in Casper to May 23 in Jackson — below are local dates for 11 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Cheyenne | 5b | May 14 | October 1 | April 16 – April 30 |
| Casper | 5a | May 10 | September 29 | April 12 – April 26 |
| Gillette | 4b | May 15 | October 1 | April 17 – May 1 |
| Laramie | 4a | June 7 | September 4 | May 10 – May 24 |
| Rock Springs | 5a | May 24 | September 24 | April 26 – May 10 |
| Sheridan | 5a | May 21 | September 23 | April 23 – May 7 |
| Evanston | 5a | June 12 | September 12 | May 15 – May 29 |
| Green River | 5a | May 24 | September 22 | April 26 – May 10 |
Asparagus in Wyoming: FAQ
When can I plant asparagus in Wyoming?
Across Wyoming, the time to transplant asparagus spans roughly April 12 in Casper to May 23 in Jackson, each following that city's local frost dates.
Does the asparagus planting date vary across Wyoming?
Yes. Wyoming publishes 11 cities with their own frost dates, so the right asparagus planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
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