This looks like it could either be a ‘Rainbow Sorbet’ or a ‘Joseph’s Coat’ rose, but there are many others that are also similar in shape and coloring. Unfortunately we cannot positively identify the cultivar of rose because there are thousands of different garden forms of varying growth and flower types divided into two broad categories Old Garden Roses and Modern Roses. However, you could contact your local rose society such as the Pacific Rose Society or a horticulturist at your local garden center that specializes in roses and hopefully they can identify further for you. Also there are many helpful websites including: www.helpmefindroses.com. All roses do best in full sun with regular water and feed with a slow release or organic fertilizer formulated for roses.