The sweet potato grows best in sandy soil and is not good in clay or muck. The planting is started from rooted sprouts. The sprouts, called draws, are grown from healthy tubers planted in a hot bed. The draws are pulled from the tubers at planting time, usually takes a month to produce draws. Plant draws 12 to 18 inches apart in rows 36 inches apart. Excess nitrogen causes lots of vine growth but few tubers.
Harvest the tubers as needed or when the vine is frosted. Harvest carefully as injuries shorten tuber storage life. Leave the roots exposed for a short time to dry then place them into containers.