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The easiest way is to use division. Every year, the plant crown diameter will increase. After a few years, you can dig the crown out, split it into several evenly sized pieces (all over 8" in diameter, for lowest maintenance - you can do smaller, but they dry out more easily). This is best done in fall, after the tops are cut back, or in spring, right after ...


I would transplant it now. Fall is a great time to move perennials around, as it gives them a little time to grow some roots before the next season's growth. That said, you could also be very successful moving the plant next spring, and that would be fine too. The more important part is getting the entire rootball, as this plant can have quite a good, deep ...

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