When to Plant Watermelon in South Carolina: Best Months and Last Planting Date
Plant watermelon in South Carolina from late March near the coast to early May upstate. See region dates, the too-late cutoff, and a summer second crop.
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When to Plant Watermelon in South Carolina
Plant watermelon in South Carolina after frost danger has passed and soil has warmed to at least 65 degrees F. The coast, midlands, and upstate do not warm at the same time. Coastal gardens can often plant earlier than upstate gardens, where spring nights stay cooler.
Near the coast, late March to April can work in a warm year. In the midlands, April is usually the main window. In the upstate, mid April to early May is often safer. Use your local last frost date with the watermelon by zone guide before setting transplants or sowing seed.
South Carolina Timing Notes
- Use full sun and warm, well-drained soil.
- Water deeply while vines spread and fruit is growing.
- Mulch after soil is warm to hold moisture.
- In hot summers, keep plants watered while they are flowering and forming fruit; water stress then costs you melons.
Is It Too Late to Plant Watermelon in South Carolina?
Near the coast and in the midlands, watermelon planted as late as mid July can still ripen before the first frost, which often waits until November. Choose a 75 to 85 day variety and keep new plantings well watered through the hottest weeks. In the upstate, treat early July as the cutoff and use a short-season variety.
Next Steps
Pick a planting date based on your part of the state. South Carolina usually has enough heat for watermelon, but cold early soil still causes slow starts.