A background is a must. Use a hedge, shrub border, a trellis, a fence, or a wall.
Perennials prefer full sun and well-drained soil.
Choose plants that will give continuous bloom. A good arrangement is tall plants in the back, low ones. Plant so as to mass varieties in groups of three to five or more. Consider foliage in this planning. Perennials Above is a typical bed which indicates location of Background, Middle ground and Foreground flowers.