Sweet Corn planting in Utah.
Sweet Corn planting in Utah is shaped by the state's 6b dominant hardiness zone, last frost date around May 1, and a 165-day growing season. Sweet Corn is widely grown in Utah — 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 Utah State University Extension 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
Sweet CornHarvest window
Harvest timing varies with planting date and seasonal weather — these dates are typical for the ideal planting window.
Growing notes
Sweet Corn grows well in Utah's typical climate. Utah's 165-day growing season and 6b hardiness zone support reliable production with appropriate variety selection.
Sweet Corn is widely grown in Utah — commercially significant or common in home gardens and food plots.
Agronomy reference
Growing-degree-day requirement: 1400 GDD (base 50°F) from planting to maturity.
Succession planting every 2-3 weeks extends harvest. Genotype matters: SU (standard), SE (sugar enhanced), and SH2 (supersweet) varieties have different planting requirements.
Common pests to watch
- Corn earworm
- European corn borer
- Raccoons
Pest pressure varies by region and year. Confirm current outbreaks with Utah State University Extension.
Common diseases
- Stewart's wilt
- Common rust
- Smut
Resistance varieties shift each year. Check the current variety trial report for your state.
Variety selection
Sweet Corn varieties for Utah 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 “sweet cornvariety trial” or “recommended sweet corn 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.
Sweet Corn 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.