Margarethe, you can cut fairly wide border strips and applique the shaped edges onto those strips. That then leaves you with a border where you can either do some fancy quilting, or you could appliqué flower shapes onto that wide border, and then finish your quilt as usual.
If you decide to bind the quilt along the hexagons, it's absolutely necessary to use binding that has been cut on the bias (because of all the bends and corners).
I have seen quilts finished either way, and they can look stunning. Have fun!