Most of the perennials she suggests are not suited to an all-shade garden. The following list should provide plenty of ideas for gardeners who would love to have a rich palette of color blooming in their back yards during spring, summer and fall. Colorful flowering shrubs include spirea and the old favorite, roses. Bigge has had good luck with the pink Centennial shrub rose for all-summer color. She moves plants around as needed for height variation and color combinations.
Examples are roses, pin cushions, Jupiter's beard and delphiniums.
Hanging basket poles are good for this purpose. For interest, add some decorative items to the garden. Ideas include a rock, a fountain or birdbath, driftwood, a pottery figurine or a birdhouse. Bigge treats her gardens with a liquid fertilizer such as Miracle Gro every two weeks throughout the season, unless a lot of rain has fallen.