UFOs

My stitching cave has a goodly number of UFOs and this hand stitched hexagon quilt is one I began a couple of years ago whilst down at Killermont , near Omarama. Dr D spends 9 hours a day on the tractor for a fortnight and I need handwork to while away the time between walking the area and looking for blips! The design is called Grandmother's Garden and I need to figure out how to design borders to complete the work,after finishing the edge with the last wee diamonds and triangles.