Prune the plant to only one stem and prune this central stem to where it only has two or three buds.
Allow the scuppernong grapes to grow up a trellis and tie the vine loosely onto the trellis or other stake.
Tie the vine up each week as it grows and continue pruning the side shoots off the plant. The goal is to force a strong central vine during the first year in order to have a good harvest.
Avoid pruning the scuppernong vine during its second season, as it will have reached full growth, but continue to cut the side shoots back to two or three shoots each during the dormant season. Expect fruit and flowers on the side shoots the next season after this pruning.