2026 Planting Guide
Fall cropWhen to Plant Wheat in Illinois
Complete guide to growing wheat in Illinois with optimal planting dates, recommended varieties, soil requirements, pest management, and harvest timing. Data sourced from USDA and state extension services.
Monthly Planting Calendar
Visual overview of the wheat growing season in Illinois. Red diamond markers indicate frost date boundaries.
Quick Facts
Min. Soil Temp
40-55°F (4-13°C)
Growing Period
240-270 days
From planting to harvest
Last Spring Frost
April 20
Wait until after this date
First Fall Frost
October 12
Harvest before this date
Monthly Task Timeline
Month-by-month guide for managing wheat in Illinois.
January - May
Grow & MonitorIrrigate as needed, scout for pests, apply side-dress fertilizer, and manage weeds.
June - July
HarvestCheck maturity indicators, schedule equipment, harvest at optimal moisture content.
August
Off-seasonCover crop planting, soil testing, equipment maintenance, and planning for next season.
September - October
PlantPrepare soil, apply starter fertilizer, and sow seeds at recommended depth and spacing.
November - December
Grow & MonitorIrrigate as needed, scout for pests, apply side-dress fertilizer, and manage weeds.
Best Wheat Varieties for Illinois
These varieties have proven performance in Illinois's climate and soil conditions. Always source certified seed from reputable dealers.
| # | Variety | Best For |
|---|---|---|
| 1 | Pioneer 25R47 | Illinois climate |
| 2 | Dyna-Gro WX18747 | Illinois climate |
| 3 | AgriPro SY Wolverine | Illinois climate |
Growing Tips for Illinois
Region-specific advice from agricultural extension services and experienced Illinois farmers.
Soft red winter wheat — primary class in Illinois
Good rotation crop before soybeans
Apply spring nitrogen (80-100 lbs N/acre) at green-up
Pest & Disease Watch
Monitor for these threats throughout the growing season. Integrated Pest Management (IPM) is recommended.
Hessian fly
Scout regularly and use integrated pest management
Aphids
Scout regularly and use integrated pest management
Armyworm
Scout regularly and use integrated pest management
Wheat midge
Scout regularly and use integrated pest management
Cereal leaf beetle
Scout regularly and use integrated pest management
Companion Planting
These plants grow well alongside wheat, improving pest control, pollination, and nutrient availability.
Frost Dates
Last Spring Frost
April 20
Wait until after this date before planting frost-sensitive crops outdoors.
First Fall Frost
October 12
Plan to complete harvest of warm-season crops before this date arrives.
Frequently Asked Questions
When is the best time to plant wheat in Illinois?
The optimal planting window for wheat in Illinois is September 25 to October 20. Soil temperature should reach at least 40-55°F (4-13°C) before planting. The total growing period is 240-270 days.
What varieties of wheat grow best in Illinois?
The best varieties for Illinois include Pioneer 25R47, Dyna-Gro WX18747, AgriPro SY Wolverine. These varieties are adapted to local climate and soil conditions and have proven performance records.
When can I harvest wheat in Illinois?
The harvest window for wheat in Illinois is typically June 25 to July 15. The crop takes 240-270 days from planting to reach maturity.
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Data Sources
Data sourced from USDA NASS Crop Planting Dates, Illinois Cooperative Extension Service, and NOAA frost date records. Last updated: March 2026.
Planting dates are averages and may vary by county, elevation, and local microclimate. Always consult your local extension office for the most precise recommendations.