Photo: Webb Chappell
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Cut Back Perennials

A little work now results in healthier spring beds: Evict tired annuals, as well as the snails and slugs that feed on them, which breed in fall. Trim spent perennial foliage down to the ground; this sends energy to the roots, for next season. Every three years, divide crowded tuberous plants, like irises and daylilies: More space means more flowers.

MORE: How to Divide Perennials
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