Commonly named for the attractive, exfoliating bark of the species, growing ninebark shrubs is simple. Their are two factors to successfully grown ninebark, the location and soil you choose. A North American native, Ninebark, prefers a soil that is only slightly acidic and location that is sunny to lightly shaded. Established ninebark shrubs are drought tolerant and can thrive with only occasional watering. Pruning for shape and thinning inner branches will likely be all that is necessary to keep growing ninebark shrubs healthy and attractive.