When to Plant Cabbage in Wyoming
A satisfying crop that stores well. Plant in spring or fall for crisp, dense heads.
The Short Answer
Wyoming Frost Dates
Your planting dates depend on which part of Wyoming you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Eastern Wyoming | 4a, 4b, 5a | May 10 - May 30 | Sep 10 - Sep 25 |
| Western Wyoming | 3a, 3b, 4a | May 25 - Jun 15 | Aug 25 - Sep 15 |
| Southern Wyoming | 4b, 5a, 5b | May 15 - Jun 1 | Sep 5 - Sep 20 |
Cabbage Planting Schedule for Wyoming
Eastern Wyoming (Zones 4a, 4b, 5a)
Average last frost: May 10 - May 30 · Average first frost: Sep 10 - Sep 25
Western Wyoming (Zones 3a, 3b, 4a)
Average last frost: May 25 - Jun 15 · Average first frost: Aug 25 - Sep 15
Southern Wyoming (Zones 4b, 5a, 5b)
Average last frost: May 15 - Jun 1 · Average first frost: Sep 5 - Sep 20
Growing Cabbage in Wyoming
Cabbage in Wyoming's Climate
Your cold climate is excellent cabbage country. Transplant 2-3 weeks before your last frost — cabbage handles frost well. Fall cabbage is equally rewarding: start indoors in mid-June, transplant in mid-July, and harvest dense, sweet heads after frost. Storage varieties like Danish Ballhead keep for months in a cold garage or root cellar.
Soil Considerations for Wyoming
Alkaline, thin soils. Dry climate means little organic matter naturally. Wind erosion a significant challenge. Heavy amendment needed.
Wyoming Climate & Growing Season
Short growing season. Very windy — wind protection essential for gardens. Low humidity. Cool nights even in summer at elevation. Cabbage can handle frost well, which is an advantage in Wyoming's climate. You can push planting dates earlier in spring and extend into fall.
Growing season length varies across Wyoming: Eastern Wyoming (4a, 4b, 5a) has a last frost around May 10 - May 30, while Southern Wyoming (4b, 5a, 5b) sees frost end around May 15 - Jun 1. This difference matters for cabbage — but cabbage handle frost well, so the timing difference is less critical.
Growing Tips
Consistent watering prevents head splitting. Heads can handle light frost — it actually improves flavor.
Companion Planting
Plant cabbage alongside these companions for better growth:
Keep cabbage away from:
The Bottom Line
Last reviewed: March 29, 2026