quiltingcandy

I am not sure what you are making but it sounds like you want to make a vine in an applique. I saw one way to do it is:
1.) cut the fabric 1/2 in larger than you want the vine
2.) then you sew one side down to the fabric by machine with the 1/4 inch seam (if you need it thinner you can trim off the extra fabric,
3.) you fold over the other side and sew it down.

Hope this make sense since I don't have pictures to show you.