A friend happened to post a picture of a rose,he's in England, as is the rose. I'm thinking it's a STERLING SIVER, but not sure. He said it's greatly scented,but he doesn't know the name. Question: if it is a SS can I grow it in zone 5a someway,,even though it's supposed to be a zone 7 rose?? I already grow THE IMPRESSIONIST,,REINE DE VIOLETTE. Also MIDNITE BLUE, which is grown in a pot and lives in the garage for the winter..