I would add the sashing row to the outside of the quilt just like you have for the interior, and, then, if the white fabric that you used for some of the ovals on which you appliqued the letters/flowers is different and brighter than what you used for sashing, I would use that for the border and then bind it with the green or tan or whatever color you you like. I also agree that a leaf/vine pattern to use in the border would be very nice. I love this quilt--it is quite wonderful, and you should be very proud of it! Carolyn