What is Stitch in the Ditch QuiltingStitch in the ditch is a quilting method that minimizes how much thread shows on the top of the quilt. It is usually achieved by machine (or hand) quilting in the seaml ines of a quilt, a teeny hair's width toward the side of the seam with less seam allowance underneath.
Some quilters prefer to stitch 1/8" or 1/4" away from the seam lines, a technique that's more often called outline quilting.
Even though stitching in the ditch is somewhat invisible on the top of the quilt, it does secure all three layers of the quilt sandwich. Quilters often choose either a matching thread or a very fine, invisible thread called monofilament when stitching in the ditch.