Planting Date · Soybeans
Soybeans Planting Date Calculator
Calculate the optimal planting dates for soybeans based on your USDA zone, last frost date, and preferred start method.
Optimal Soil Temp
60°F
Days to Maturity
100 days
Frost Tolerance
tender
Planting Depth
1–1.5 inches
Input
Fill in the fields below, then click Calculate.
Select your USDA plant hardiness zone (3–10).
Approximate month of your last spring frost.
How you plan to start the crop.
No results yet
Fill in the fields and click Calculate to see results.
Tips & Best Practices
- Plant soybeans after the last frost when soil is consistently above 60°F.
- Inoculate seeds with rhizobium bacteria for better nitrogen fixation.
- Soybeans are photoperiod-sensitive — choose varieties suited to your latitude.
- Avoid planting too early in cold, wet soil which causes poor stands.