Moss #743166 - Ask Extension

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Moss #743166

Asked April 07, 2021, 9:01 PM EDT

I have heavy moss in large sections of my lawn. Over the last couple of years I have been trying to better condition my soil against moss with applications of pelletized lime and Ironite. Thinking of power raking the moss and then reseeding. Looking for advice on confirming soil readiness and reestablishing grass. Thanks

Ramsey County Minnesota

Expert Response

Thank you for writing.
I would start with a soil test or at least a pH test.  You have been focusing on alkalizing the soil but I am not sure that will be productive.
The most common reason for moss is a damp shady environment of compacted soil that is seeded with a grass like bluegrass or rye that require a lot of sun. Moss does not kill grass but it moves into an area where the turf is weak.

Note last paragraph here. https://www.greenerblade.com/the-truth-about-shade-tolerant-grass-in-minnesota

Soil test http://soiltest.cfans.umn.edu/

https://web.extension.illinois.edu/lawntalk/weeds/solving_moss_problems_in_lawns.cfm  

Bottom line, after you have remediated drainage and compaction, consider a shade tolerant ground cover rather than grass. Flowing curved beds can add character to a lawn. Ginger, barrenwort, hosta, sedge,  

https://www.finegardening.com/article/10-ground-covers-for-shade


I hope this helps.

Steve Miles Replied April 07, 2021, 9:34 PM EDT

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