I know you love the duckie fabric but I'm just not seeing it in this quilt. I'm sorry but when I ask a question I want an honest answer and I'm sure you do, too. I would either use just the greeh as a single border or you could use a 1" solid green first border followed by a 1" white border, if you have any, and then a 3" solid green border. Another option would be a 3" green border with an inner white flange.