Skip to main content

Crop Guide – Sweetpotatoes

Common Name Sweetpotato (or sweet potato)
Scientific Name Ipomea batata

Uses Edible root crop; stores well; eaten whole, in muffins, mashed, fries, chips, etc. Leaves are also edible, but not typically consumed.

Crop Timeline

  • Seeds: Sweetpotatoes are not grown from seeds.
  • Transplants: Obtain slips (bareroot, vegetative cuttings) for planting in late May to early June. Stick slips in loose soil and keep moist for about a week while roots are established.

Planting tips

  • Fertilizer: Incorporate a complete organic fertilizer in the soil 2 weeks before planting
  • Number of plants per square foot: 1 slip per square foot
  • Growing structures: raised beds, in ground, containers
  • Frost protection: None; sweetpotatoes should be harvested before first frost.

Harvest

  • 100-120 days after planting
  • Each slip may produce 3-5 sweetpotatoes
  • Find where the vine was planted in the soil and carefully dig around the stem
  • Use plastic trowels to loosen the soil trying to avoid damaging potatoes. Use hands to dig once soil is loosened.

Pests 

There are no major pests of concern for sweetpotato in the school garden environment. Generally speaking, a good practice for all crops is to use crop rotation from season to season to break the life cycle of insects and soil pathogens.