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Crab grass #927218

Asked March 31, 2026, 7:50 PM EDT

I live in Brooklyn Park, MN. When should I put crab grass preventative down?

Hennepin County Minnesota

Expert Response

It can be applied now. One of the natural indicators, forsythia bloom, seems to be lagging a bit.
https://www.canr.msu.edu/news/timing_crabgrass_pre_emergence_applications

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