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"Perennials bring flowers and foliage to your garden year after year. Unlike annuals and biennials, they needn&amp;#039;t be replaced at the start of each season. Learn how to design and care for a perennials garden."^^<http://www.w3.org/2001/XMLSchema#string>
<http://home.howstuffworks.com/how-to-grow-perennials7.htm>