Bearded Iris are tall, elegant additions to the flower border, but they are also relatively high maintenance. You can help cut down on the incidence of soft rot and borer damage through regular division of the iris rhizomes, every 2-3 years. This will also keep bearded iris performing and blooming at its best. Dividing iris isn't hard. Start by carefully digging and lifting the rhizomes, as shown here.
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[Source: About.com Gardening: Most Popular Articles]
