Peppers planting in Iowa.
Peppers planting in Iowa is shaped by the state's 5a dominant hardiness zone, last frost date around May 5, and a 155-day growing season. Peppers is widely grown in Iowa — commercially significant or common in home gardens and food plots.
Planting dates on this page are climatological estimates from USDA frost-date norms and zone-typical planting offsets. Verify against Iowa State University Extension and Outreach for variety- and county-specific guidance.
Planting calendar — 2026
Planting windows shift earlier in southern parts of the state and later in northern parts. Use last frost date in your specific county as the reference.
Planting windows
Spring planting
PeppersHarvest window
Harvest timing varies with planting date and seasonal weather — these dates are typical for the ideal planting window.
Growing notes
Peppers grows well in Iowa's typical climate. Iowa's 155-day growing season and 5a hardiness zone support reliable production with appropriate variety selection.
Peppers is widely grown in Iowa — commercially significant or common in home gardens and food plots.
Agronomy reference
Days to maturity from transplant. Long growing season requirement makes transplant essential in most northern states.
Common pests to watch
- Aphids
- Pepper weevil
- Hornworms
Pest pressure varies by region and year. Confirm current outbreaks with Iowa State University Extension and Outreach.
Common diseases
- Bacterial spot
- Phytophthora
- Mosaic virus
Resistance varieties shift each year. Check the current variety trial report for your state.
Variety selection
Peppers varieties for Iowa live with your extension service.
Variety performance is micro-regional and changes with each year’s trial cycle. We don’t republish variety lists — instead, we point directly at the source.
Search the extension site for “peppersvariety trial” or “recommended peppers varieties” to find the current report.
Yield varies significantly by variety, soil, fertility, and management. Consult your state extension service for variety performance trials in your region.
Peppers timing. Live alerts.
Bield: Farm ties weather and soil-temperature stations in your county to crop planting thresholds — get notified the day soil temp clears your target window.