Answer: Sunset Western Garden Book places you in their zone 1 growing region, with the coldest winters in the west, and a short summer season. In this part of the country, try growing Asters, Japanese Anemone, Campanula (bellflower), Chrysanthemum, Coreopsis, Dianthus, Echinacea (purple coneflower), Gladiolus, Iris, Lavender, Liatris (gayfeather), Rudbeckia (gloriosa daisy), and Veronica spicata (speedwell) for summer color. Don't completely discount annuals, though. They are reliable performers and can fill bare spots with their cheerful blooms early in the season while the perennials are just beginning to wake up.
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