Thanks, Jeff and Phil. I don't know why I have the inclination to push my crotons to get as much sun as they'll tolerate. Even though I've heard from everyone here that less is sometimes better to get less washing out of colors. Too many years of growing perennials, I guess. It just seems natural to me that especially yellow and green crotons should require more light to color up. I'm still struggling with where to put them that won't get at least a few hours of sun.