Grandmother's flower garden is usually done by a method called English paper piecing. My daughter and I are making one. It takes a very long time. You need to figure out the finished size of your hexagon. Trace it onto the paper side of freezer paper, cut them out, iron the wax side down on fabric, making sure to leave 1/4 inch for seam allowance around each hexagon, cut the fabric around each hexagon eyeballing the extra for seam allowance. Turn the seam allowance down over the paper side of the hexagon and baste with large stitches. After they are all basted then put 2 hexagons right sides together and whip stitch. Then keep sewing and adding more hexagons to create the pattern of your choice. You will have to sew them in sort of a y seam construction. It is not hard. Very time consuming. Always leave the basting in the outer ring, all the inner ones the basting can be removed and then the papers removed. We take a sheet of computer paper and draw as many hexagons as we can, then cut a piece of wax paper the same size and run it through our printer. you want to print on the paper side. Not everyones printer will do it. The papers can be reused about 3 times. Iron with a dry iron.