2026 Planting Guide
Spring cropWhen to Plant Lettuce in Indiana
Complete guide to growing lettuce in Indiana 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 lettuce growing season in Indiana. Red diamond markers indicate frost date boundaries.
Quick Facts
Min. Soil Temp
40°F (4°C) minimum
Growing Period
45-70 days
From planting to harvest
Last Spring Frost
April 22
Wait until after this date
First Fall Frost
October 10
Harvest before this date
Monthly Task Timeline
Month-by-month guide for managing lettuce in Indiana.
January - March
Off-seasonCover crop planting, soil testing, equipment maintenance, and planning for next season.
April
PlantPrepare soil, apply starter fertilizer, and sow seeds at recommended depth and spacing.
May - July
HarvestCheck maturity indicators, schedule equipment, harvest at optimal moisture content.
August - December
Off-seasonCover crop planting, soil testing, equipment maintenance, and planning for next season.
Best Lettuce Varieties for Indiana
These varieties have proven performance in Indiana's climate and soil conditions. Always source certified seed from reputable dealers.
| # | Variety | Best For |
|---|---|---|
| 1 | Buttercrunch | Indiana climate |
| 2 | Romaine | Indiana climate |
| 3 | Black Seeded Simpson | Indiana climate |
| 4 | Red Sails | Indiana climate |
Growing Tips for Indiana
Region-specific advice from agricultural extension services and experienced Indiana farmers.
Cool-season crop — plant early spring
Fall crop: direct seed August
Loose-leaf types fastest to harvest
Pest & Disease Watch
Monitor for these threats throughout the growing season. Integrated Pest Management (IPM) is recommended.
Aphids
Scout regularly and use integrated pest management
Slugs
Scout regularly and use integrated pest management
Loopers
Scout regularly and use integrated pest management
Leaf miners
Scout regularly and use integrated pest management
Downy mildew
Scout regularly and use integrated pest management
Companion Planting
These plants grow well alongside lettuce, improving pest control, pollination, and nutrient availability.
Frost Dates
Last Spring Frost
April 22
Wait until after this date before planting frost-sensitive crops outdoors.
First Fall Frost
October 10
Plan to complete harvest of warm-season crops before this date arrives.
Frequently Asked Questions
When is the best time to plant lettuce in Indiana?
The optimal planting window for lettuce in Indiana is April 10 to May 10. Soil temperature should reach at least 40°F (4°C) minimum before planting. The total growing period is 45-70 days.
What varieties of lettuce grow best in Indiana?
The best varieties for Indiana include Buttercrunch, Romaine, Black Seeded Simpson, Red Sails. These varieties are adapted to local climate and soil conditions and have proven performance records.
When can I harvest lettuce in Indiana?
The harvest window for lettuce in Indiana is typically May 25 to July 10. The crop takes 45-70 days from planting to reach maturity.
Get planting reminders for Lettuce in Indiana
Sign up for free alerts when it's time to plant, fertilize, and harvest.
Data Sources
Data sourced from USDA NASS Crop Planting Dates, Indiana 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.