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When should I put down cr... #240470

Asked April 29, 2015, 3:31 PM EDT

When should I put down crab grass preventer this season?

Hennepin County Minnesota

Expert Response

Thank you for your question.

University of Minnesota Extension has a very helpful lawn care calendar here:
http://www.extension.umn.edu/garden/landscaping/maint/calendar.htm

You'll see that the calendar indicates the best times (solid red line) to do certain lawn care activities, and acceptable or second-best times (dashed blue lines). According to the calendar, the best time to apply crabgrass pre-emergent is now through mid-May.


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