When to Plant Garlic in Wyoming
In Wyoming, the time to plant garlic in fall runs from Aug 31 – Sep 28 in Jackson to Oct 2 – Oct 30 in Rawlins. In Cheyenne, it's Oct 1 – Oct 29. The average first fall frost differs by about 5 weeks across the state (Aug 31 in Jackson, Oct 2 in Rawlins), so use the dates for the town nearest you.
Garlic is planted in fall, around the first frost, and harvested the next summer. Cloves need a cold winter to form good bulbs.
- Plant: from the first fall frost up to 4 weeks after it.
Garlic planting dates in Wyoming by city
| City | Zone | Fall planting |
|---|---|---|
| Casper | 5a | Sep 29 – Oct 27 |
| Cheyenne | 5b | Oct 1 – Oct 29 |
| Cody | 5a | Oct 1 – Oct 29 |
| Douglas | 5a | Sep 23 – Oct 21 |
| Evanston | 5a | Sep 12 – Oct 10 |
| Gillette | 4b | Oct 1 – Oct 29 |
| Green River | 5a | Sep 22 – Oct 20 |
| Jackson | 4b | Aug 31 – Sep 28 |
| Lander | 5a | Sep 27 – Oct 25 |
| Laramie | 4a | Sep 4 – Oct 2 |
| Powell | 5a | Sep 20 – Oct 18 |
| Rawlins | 5a | Oct 2 – Oct 30 |
| Riverton | 5a | Sep 24 – Oct 22 |
| Rock Springs | 5a | Sep 24 – Oct 22 |
| Sheridan | 5a | Sep 23 – Oct 21 |
| Torrington | 5a | Sep 29 – Oct 27 |
Calculated from each town's average (50%) frost dates, from the nearest NOAA station (1991–2020). Typical dates for the 2027 planting season, based on NOAA's 1991–2020 averages. They are long-term odds, not a forecast: always check your local forecast before planting. Zones: 2023 USDA Plant Hardiness Zone Map (USDA-ARS and Oregon State University). Not the official map; see planthardiness.ars.usda.gov.
See all frost dates in Wyoming, or the general guide to when to plant garlic.
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