Till the earth. Being tubers, sweet potatoes will grow deep in the earth. Make sure theyâÂÂll have an easy time of it by tilling the soil about 12 inches (30.5 cm) deep. Get the soil as loose and light as possible, incorporating gardening soil if necessary.

According to the following article

http://www.wikihow.com/Grow-Sweet-Potatoes

Hay, golfer, Don't plant beauregard sweet potatoes. If you
want a good potato, plant COVINGTON. All commercial
growers in N.C. plant Covington. They are very productive,
look good in the super market and taste great.
Beauregard is a dry potato.

Hay, golfer, Don't plant beauregard sweet potatoes. If you
want a good potato, plant COVINGTON. All commercial
growers in N.C. plant Covington. They are very productive,
look good in the super market and taste great.
Beauregard is a dry potato.

hotthill

Thanks for your reply. I am looking into info on Covington SPs. I assume you have grown this variety so do you have a good source for slips?