I've seen a big difference in Solero from first blooms to those that are opening now. The first were solid bright, clear yellow, the current blooms are yellow in the center, lightening to white toward the edges. Today I noted that Nacogdoches has only lightened slightly in the sun and is holding its bright color well.
Sunsprite is bright, clear yellow and doesn't fade, but unfortunately I think that's just because the blooms blast open pretty fast and don't last long. It has a nice fragrance though, and it carries sweetly in a breeze. It doesn't seem as winter hardy as most of my other roses and would probably be happier in zone 7 or higher.
