When to plant garlic chives in Wyoming
Wyoming spans USDA zones 4a–5b, so the right time to plant garlic chives shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 26 in Casper to June 6 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 30 – May 14 |
| Casper | 5a | May 10 | September 29 | April 26 – May 10 |
| Gillette | 4b | May 15 | October 1 | May 1 – May 15 |
| Laramie | 4a | June 7 | September 4 | May 24 – June 7 |
| Rock Springs | 5a | May 24 | September 24 | May 10 – May 24 |
| Sheridan | 5a | May 21 | September 23 | May 7 – May 21 |
| Evanston | 5a | June 12 | September 12 | May 29 – June 12 |
| Green River | 5a | May 24 | September 22 | May 10 – May 24 |
Garlic Chives in Wyoming: FAQ
When can I plant garlic chives in Wyoming?
Across Wyoming, the time to transplant garlic chives spans roughly April 26 in Casper to June 6 in Jackson, each following that city's local frost dates.
Does the garlic chives planting date vary across Wyoming?
Yes. Wyoming publishes 11 cities with their own frost dates, so the right garlic chives 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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