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")
Cover Up-Add a custom aluminum roof frame with removable clear polycarbonate panels or outdoor fabric. If you don't need protection from rain, install a retractable awning or build a pergola with vines such as wisteria climbing over it.