Keeping sweet potatoes
I live in northeastern Kentucky, USA. Sweet potatoes grow exceptionally well in this area. I use a mix of horse and mule manure on my garden. I have had potatoes that weigh 5 pounds. After I dig them up in the fall or whenever the vines start to die, brush off the dirt and let them sit outside for a couple of days to harden a little. I kept mine in a dirt cellar for two and a half years, and they were still good to eat. Eighteen plants produced 250 pounds.