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Dividing perennials in mn #928642

Asked April 16, 2026, 6:48 PM EDT

When doing spring divisions of plants what are the rules for when I can start! I have lots of dividing to do this year and want to start asap. Do I need to wait for our estimated last frost date of may 15th in zone 4b or can I start now with the most cold hardy or any spring dividing plant.

Olmsted County Minnesota

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