Perennials return year after year. Varieties are available for sun, shade, moist or arid conditions and in a wide range of sizes and colors. Many need some protection during the winter months. Bloom times vary with the variety. Generally they will flower for a few weeks and provide lush foliage the rest of the season. Cut back dead flowers to stimulate root and leaf development. Most need to be cut back near the ground after dead in the late fall or early winter.
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