Whip stitch – You aren’t too worried about the edges and yes there is a possibility of them fraying a little bit. You will want to use a fusible under the fabric so it helps keep it secure to the fabric. This method is really done by hand.
Raw Edge Note: If you like raw edge applique, you can stitch an outline around your pieces instead around 1/8 inch from the edges. This will allow the applique to fray that amount on the edges. Keep in mind, this can have strange effects where your pieces overlap.
Stitch very close to the edge of the appliqué fabric if you don’t want them to fray too readily. Leave a larger gap if you hope to achieve a more ragged edge. Stitch all the way around your appliqué shape. The edges of the appliqué will fray as the project is used and especially if it is laundered.
Yep, it’s true - you can also quilt right over the applique! A regular, all-over quilting texture can fade into the background visually, even though it goes over the applique. Not only is this easier to implement on your home machine, it’s also much cheaper than custom quilting if you go with longarm quilting.