Facings are a great way to finish edges. But sometimes, it can be difficult to turn the outer edge under and make it look clean and neat. Here is a trick I often use for easy turning, which can be used on any outside curved edge.
Step 1 – run a stitching line along the turn line. In most cases, this will be the seam allowance width, or 1/2″ for most Truly Victorian pattern. This can be done on machine, or by hand. I find machine works best. This will give you a line to fold along. And it makes the fabric WANT to turn at the stitching line. The only trick here is to keep the fabric from gathering under the foot, especially with fine fabrics.
Next, run a gather stitch near the edge of the fabric. I find this is best done by hand, as it can be difficult to control the edge in the machine. You only need to stitch along the curved sections, sewing about 1″ past the curves into the straight areas.
Step 2 – Fold/press the edge to the wrong side, starting with the straight areas. When you get to the curve, gather the the seam allowance as needed to lay flat over the facing. Press the curve in place.
This will make even the most unruly facing behave, and look beautiful.