Why do light-colored dahlias look dirty or un-uniforim?
I've only been growing dahlias for a couple of years. I live in Northern Utah (wish there was a Dahlia Society around here). I've noticed that most of the light-colored dahlia flowers look dirty, but the dark ones don't. From the point of the buds beginning to open, the light-colored ones don't have the beautiful form they should. Do insects tend to focus their efforts on these? I have plenty of earwigs. Right next to a light-colored Candlelight I have a Dark Magic that is just as gorgeous as it can be.
Thanks for your insights.