What a clever and easy idea. Mom's gone now and it would be a fun way to share her favorite Rose bushes with my Sibs. Grow Beautiful Rose Bushes from Trimmings with the Help of Potatoes (from Insanely Clever Gardening Tips Ideas")
Brick pavers make a simple, handsome border and work well as edging material. They're ideal for a wide border that keeps grass out of the garden, yet allows flowers etc. to spill over without intruding onto the grass.