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When to Plant Soybeans in Mississippi

Soybeans (edamame) are a high-protein legume that fixes nitrogen in the soil. Fresh green soybeans harvested at the edamame stage are a nutritious snack.

Mississippi spans USDA hardiness zones 7b, 8a, 8b (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 Soybeans planting dates based on your local frost dates.

Soybeans Planting Calendar for Mississippi

Zone 7b ~235 day growing season · Full guide →

Last frost: March 18 · First frost: November 8 · 235 day season

Activity When Date Range
Direct Sow March 25 Mar 25 – Apr 15
Harvest June 17 Jun 17 – Aug 12
Zone 8a ~255 day growing season · Full guide →

Last frost: March 8 · First frost: November 18 · 255 day season

Activity When Date Range
Direct Sow March 15 Mar 15 – Apr 5
Harvest June 7 Jun 7 – Aug 2
Zone 8b ~276 day growing season · Full guide →

Last frost: February 25 · First frost: November 28 · 276 day season

Activity When Date Range
Direct Sow March 4 Mar 4 – Mar 25
Harvest May 27 May 27 – Jul 22

Growing Tips for Mississippi

Direct sow after soil warms to 60F. Plant in blocks rather than rows for better pollination. Harvest for edamame when pods are plump and bright green.

Frequently Asked Questions

When should I plant Soybeans in Mississippi?

Planting dates for Soybeans in Mississippi depend on your USDA zone. Mississippi spans zones 7b, 8a, 8b. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Mississippi for planting?

Mississippi contains USDA hardiness zones 7b, 8a, 8b. 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.