I decided to use a "baby hem" for the edges of the peplum on this blouse. It is a treatment used to hem sheer fabrics. First you need to sew a line of stitching along the area to be hemmed at where you would like the finished edge of the hem. Your hem will be 1/8 th inch shorter than this so keep that in mind. You can see here the French seams that I did on this blouse. Cut them back at an angle in that seam allowance.
Fold this hem allowance to the inside of the garment, favoring the stitch line. That means the stitching will not be on the edge but rolled a tiny bit to the inside. Press in place. Go back to the machine and sew a line of stitching 1/8th inch or less back from the folded edge. I used an edge stitching foot and 1.5 stitch length. The edge stitching foot is really important for this technique. Press again. Using spray starch on every pressing step in this process really helps tame the unruliness of a poly sheer.
Once this is all trimmed back, spray more starch. Turn that edge once more to the inside and press again. Go back to the machine, again using that edge stitching foot, and stitch right over the previous stitching, about an 1/8th inch from the edge. Your hem is now complete. It has 3 lines of stitching within giving it some extra weight to help the sheer hang nicely.
Couple of hints: I used an extra fine 100% cotton thread to sew this garment. It really helps with the hem.
Afterthought: I find it easier and more accurate to do one length of sewing at a time. In other words I had a peplum. It had a curved hem edge. It also had to center fronts that needed the "baby hem" as well. I first did the peplum hem edge, stitching from edge to opposite edge. Once the whole process was complete on that edge, I did each center front edge. No attempting to turn corners here. I find it gives a neater finish. When I get to the corner I stop stitching and then tie of the threads and insert them into the fold of the hem. Bring the needle out of the hem and snip off the thread.
All that is left is putting on the buttons. Hopefully pics will be up tomorrow. It is one of those simple little garments that I will probably get a ton of wear from, therefore making it priceless....Bunny