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When to Plant Shallot in Wyoming

Shallots are a gourmet allium prized for their complex, sweet, and mild flavor. Each bulb multiplies into a cluster, making them easy and rewarding to grow.

Wyoming spans USDA hardiness zones 4a, 4b, 5a (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.

Find Your County

Click your county for exact Shallot planting dates based on your local frost dates.

Hover over a county to see details. Click to view planting guide.

Shallot Planting Calendar for Wyoming

Zone 4a ~145 day growing season · Full guide →

Last frost: May 6 · First frost: September 28 · 145 day season

Activity When Date Range
Start Indoors March 25 Mar 25 – Apr 8
Transplant Outdoors May 6 May 6 – May 20
Direct Sow April 29 Apr 29 – May 20
Fall Sowing July 6 Jul 6 – Jul 20
Harvest August 5 Aug 5 – Sep 23
Zone 4b ~155 day growing season · Full guide →

Last frost: May 1 · First frost: October 3 · 155 day season

Activity When Date Range
Start Indoors March 20 Mar 20 – Apr 3
Transplant Outdoors May 1 May 1 – May 15
Direct Sow April 24 Apr 24 – May 15
Fall Sowing July 11 Jul 11 – Jul 25
Harvest July 31 Jul 31 – Sep 18
Zone 5a ~166 day growing season · Full guide →

Last frost: April 25 · First frost: October 8 · 166 day season

Activity When Date Range
Start Indoors March 21 Mar 21 – Apr 4
Transplant Outdoors April 25 Apr 25 – May 9
Direct Sow April 11 Apr 11 – May 2
Fall Sowing July 30 Jul 30 – Aug 13
Harvest July 25 Jul 25 – Sep 12

Growing Tips for Wyoming

Plant sets in fall for spring harvest or early spring for summer harvest. Mulch heavily if overwintering. Harvest when tops brown and dry, then cure for storage.

Frequently Asked Questions

When should I plant Shallot in Wyoming?

Planting dates for Shallot in Wyoming depend on your USDA zone. Wyoming spans zones 4a, 4b, 5a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Wyoming for planting?

Wyoming contains USDA hardiness zones 4a, 4b, 5a. Your specific zone depends on your location within the state — northern and higher-elevation areas are in colder zones, while southern and coastal areas are warmer.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: April 2026.