Cool-Season Vegetable

When to Plant Cabbage in Wyoming

A satisfying crop that stores well. Plant in spring or fall for crisp, dense heads.

The Short Answer

Cabbage are cold-tolerant and do well in Wyoming's humid climate. You can direct sow 4 weeks before your last frost — that's as early as May 10 - May 30 in Eastern Wyoming. Wyoming gardeners can also plant a fall crop. Alkaline, thin soils. Dry climate means little organic matter naturally. Wind erosion a significant...

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

Start Seeds Indoors
6 wks before frost
Transplant Outside
2 wks before frost
Direct Sow
4 wks before frost
Fall Planting
10 wks before first frost

Western Wyoming (Zones 3a, 3b, 4a)

Average last frost: May 25 - Jun 15 · Average first frost: Aug 25 - Sep 15

Start Seeds Indoors
6 wks before frost
Transplant Outside
2 wks before frost
Direct Sow
4 wks before frost
Fall Planting
10 wks before first frost

Southern Wyoming (Zones 4b, 5a, 5b)

Average last frost: May 15 - Jun 1 · Average first frost: Sep 5 - Sep 20

Start Seeds Indoors
6 wks before frost
Transplant Outside
2 wks before frost
Direct Sow
4 wks before frost
Fall Planting
10 wks before first frost

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:

Beets Celery Onions Dill

Keep cabbage away from:

Strawberries Tomatoes

The Bottom Line

Cabbage can be grown successfully across Wyoming, but your exact planting dates depend on which region you're in. Eastern Wyoming gardeners should plan around a May 10 - May 30 last frost, while those in Southern Wyoming can typically plant later. For exact dates based on your zip code, use our free planting date finder.
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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