We selected this new ninebark because of the stunning foliage. Reddish new growth matures to deep red-purple foliage that holds its color reliably all summer whereas others take on brownish tones later in the season. We trialed it in Georgia, and the summer color did not brown out. Add to that, Fireside® didn’t show any signs of powdery mildew in field and production trials in multiple sites 2015-2017. The leaf size is intermediate; bigger than Little Devil™ but smaller than Diabolo®. Pinkish-white flowers bloom in spring and foliage turns deep purple in fall. The plant habit is tidier than other Physocarpus with a rounded, upright shape.