Does anyone have any experience to share regarding shading dahlias from intense summer sun to improve coloration and form? I have a lot of problems each season with dahlias fading and showing bad form due to high heat and intense sun here in the Shenandoah Valley during the hottest months of summer. I've seen a few pictures on the web of shade cloth and even umbrellas being used to improve bloom quality. Can anyone share any success (or failure) experiences using shading with dahlias? What percent shade cloth might be most appropriate? I'm thinking maybe 30% black. One company sells 50% white shade cloth. I wonder how that would compare to 30% black. It would be nice to get more ambient light but less heat. I wonder too if a mist system might help.