State × crop calendar
Sweet Corn planting in South Carolina.
- Primary crop
- Zone 8a
- 220-day season
- Last frost March 30
- Vegetable
- Frost Sensitive
Sweet Corn planting in South Carolina is shaped by the state's 8a dominant hardiness zone, last frost date around March 30, and a 220-day growing season. Sweet Corn is widely grown in South Carolina — 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 Clemson Cooperative Extension for variety- and county-specific guidance.
Planting calendar — 2026
Frost-anchored windows.
Sweet Corn · South Carolina · planting calendar
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
Earliest → ideal → latest.
Spring planting
Sweet CornEarliest
March 23
Ideal start
March 30
Ideal end
May 4
Latest
May 25
Soil-temp trigger
Wait for 55°F at 2-inch depth. Succession plant every 10-14 days for extended harvest.Harvest window
Typical start
June 3
Typical end
July 8
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 South Carolina's typical climate. South Carolina's 220-day growing season and 8a hardiness zone support reliable production with appropriate variety selection.
Sweet Corn is widely grown in South Carolina — commercially significant or common in home gardens and food plots.
Agronomy reference
Sweet Corn fundamentals.
Soil-temp minimum
55°F
Soil-temp optimum
60–85°F
Days to maturity
65–100
Water (in/wk)
1–1.5"
Soil pH
6–6.8
Nitrogen demand
high
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 Clemson Cooperative 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 South Carolina live with your extension.
Variety selection
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.
Clemson Cooperative Extension →Search the extension site for “sweet corn variety 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.
Start free trial →