A good perennial flower garden design should include long flowering fragrant perennials and roses.
Scroll down to find the link to lots of pre-planned perennial garden plans that you can use when designing a perennial garden of your own.
You can also buy perennials at my affiliate nursery at great savings, to be shipped directly to you at the time you want them.
Perennial flowers, roses and vines should be choosen for texture and balance.
Repetition and variety of perennials are also important elements to consider when designing a flower garden of perennials.
You need rhythm, scale and good color combinations to create your perennial garden design.