Answer: Most perennials respond well to an early spring trimming back, especially to remove any winter killed portions. When a plant expands by sending up new growth at the crown, it is usually a good sign of a vigorous plant. Off the top of my head I can't think of any fall blooming "daisies" except for mums and possibly shasta type daisies that would rebloom in the fall. Both of these can be cut back short in the spring.
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