I need some help to figure out what's going on. I recently had 8 rose bushes planted. All different colors, red, purple, white, yellow, pink, orange......etc. Within 3 months ALL of the roses have changed to a pinkish white color. None of the original colors are showing up. They're planted about a foot apart, which I believe is part of the problem. But need help with this please. Any idea what I can do or need to do to fix this?