Warm-Season Vegetable

When to Plant Pumpkins in South Carolina

From jack-o-lanterns to pies, pumpkins need space and time but deliver a uniquely satisfying harvest.

The Short Answer

In South Carolina, pumpkins planting dates vary by region. In Upstate, your average last frost is around Mar 25 - Apr 10, while Coastal sees its last frost around Feb 25 - Mar 15. Since pumpkins are frost-sensitive, start seeds indoors 3 weeks before your last frost, then transplant outside 2 weeks after frost danger has passed. Red clay in Piedmont. Sandy soils on coast. Acidic throughout. Rich alluvial soils in river valleys.

South Carolina Frost Dates

Your planting dates depend on which part of South Carolina you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Upstate 7a, 7b Mar 25 - Apr 10 Oct 20 - Nov 5
Midlands 7b, 8a Mar 15 - Apr 1 Nov 1 - Nov 15
Coastal 8a, 8b, 9a Feb 25 - Mar 15 Nov 10 - Dec 1

Pumpkins Planting Schedule for South Carolina

Upstate (Zones 7a, 7b)

Average last frost: Mar 25 - Apr 10 · Average first frost: Oct 20 - Nov 5

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
2 wks after frost

Midlands (Zones 7b, 8a)

Average last frost: Mar 15 - Apr 1 · Average first frost: Nov 1 - Nov 15

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
2 wks after frost

Coastal (Zones 8a, 8b, 9a)

Average last frost: Feb 25 - Mar 15 · Average first frost: Nov 10 - Dec 1

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
2 wks after frost

Growing Pumpkins in South Carolina

Pumpkins in South Carolina's Climate

Your long season means you can plant pumpkins later than northern growers while still getting October harvest. The trick is timing: plant in June-July so pollination occurs in September when temperatures have moderated from peak summer heat. Squash vine borer often has two generations in warm climates — the later planting helps avoid the worst damage.

Soil Considerations for South Carolina

Red clay in Piedmont. Sandy soils on coast. Acidic throughout. Rich alluvial soils in river valleys. Make sure soil has warmed to at least 65°F before planting pumpkins outside.

South Carolina Climate & Growing Season

Long, hot growing season. Subtropical on coast. Two main planting seasons. Summer heat can stress cool-season crops. Pumpkins cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.

Growing season length varies across South Carolina: Upstate (7a, 7b) has a last frost around Mar 25 - Apr 10, while Coastal (8a, 8b, 9a) sees frost end around Feb 25 - Mar 15. This difference matters for pumpkins — transplant timing shifts by several weeks across the state.

Growing Tips

Count backwards from when you want ripe pumpkins (usually October). They need 90-120 days, so mid-June to early July is often ideal.

Companion Planting

Plant pumpkins alongside these companions for better growth:

Corn Beans Marigolds

Keep pumpkins away from:

Potatoes

The Bottom Line

Pumpkins can be grown successfully across South Carolina, but your exact planting dates depend on which region you're in. Upstate gardeners should plan around a Mar 25 - Apr 10 last frost, while those in Coastal can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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