Harvest sweet potatoes by waiting until they reach the desired size, digging up the tubers with a spade fork, curing them, wrapping them up and storing them for later use. You need a spade fork, newspaper and a box.
- Wait for the desired growth
Wait for the sweet potatoes to reach the desired size, which usually occurs three or four months after planting.
- Dig up the potatoes
Use a spade fork to dig into the soil up to 6 inches where the potatoes are. Be careful not to nick the potatoes during this process, as they bruise easily.
- Remove the dirt
Brush off any excess dirt from the potatoes. Avoid washing them unless you are eating them immediately.
- Place the potatoes in a warm, humid location
Place the potatoes in a location with humidity at 90 percent and the temperature at 80 degrees Fahrenheit. Make sure the potatoes are laid out separately and are not touching.
- Cure the potatoes
Allow the potatoes to sit in the humid location for up to two weeks. This process allows the potatoes to grow a skin over any cuts.
- Store the potatoes
Wrap the potatoes in newspaper, and place them in a box or basket. Store them in a cool location.