One of the secrets to a successful garden design is to incorporate something unexpected, a surprise for the garden visitor. This can be done in many ways, but one surefire way to enliven a garden and create interest is to use scented plants. Most of us might envision a scented garden full of floral blooms in the summer. Although scented flowers can make a great addition to a landscape, the blooms are short lived and structurally can be difficult to incorporate into more modern designs. Plus, where's the sense of surprise and mystery?