If you double-click this pic to see it in original form, sparkling drops of water will be visible on the foliage; this was taken after the first thunderstorm of the season.
I don't like boring mounds of shrubbery. I like more natural shapes and a bit of color. This is my Magic Carpet Spirea. As you can see, I don't prune it into a perfect mound, but I keep it shorter than its max height of 2-3 feet. Dwarf or border spireas like Magic Carpet tend to get "twiggy." The cure for this is a good pruning in early spring. In the case of Magic Carpet or Gold Mound cultivars, this also encourages the development of great color because their young foliage is a beautiful shade of red. This particular specimen received a drastic pruning a few weeks ago.