Frost

• Sweet potatoes are a warm weather crop and should be planted well after the last danger of frost. For best results, plant sweet potatoes after the soil temperature has reached 65 degrees Fahrenheit.
  
  

Growing Regions

• South Carolina is divided into three primary growing regions: Coastal, covering the eastern region of the state, including Beaufort, Horry and Berkely counties; Central, covering the middle part of the state, including Chesterfield, Richland and Aiken counties; and Piedmont, covering roughly the western third of the state, including Cherokee, Okonee and McCormick counties.
  
  

Planting Dates

• Plant sweet potatoes when appropriate for your region of South Carolina, allowing a growing season of at least 120 days before the first frost. Plant in the Coastal region between April 15 and July 1, in the Central region between May 1 and June 15, and between May 10 and June 10 in the Piedmont region.