Put the power of a garden planning pro to work for you Northern Garden Symphony offers explanations and illustrations of the sequential blooms of ornamental perennials as a tool for garden design. The idea of sequential blooming Fairbanksfamous author Cyndie Warbelow explains is similar to the workings of a musical symphony in which at least a portion of its stunning constituent plants is blooming at all times even though they are not all blooming together. Given that perennial plants bloom for