St. Augustine grass

Our HOA has always kept our St. Augustine lawns mowed to 4″ to 4.5″ and the grass was always green and full. A new contractor began mowing to 3″. Since that change the crabgrass has grown through the St. Augustine, resulting in large brown weed patches allover the lawn. I’ve been told by a large, national lawn company that grass height for St. Augustine should always be 4″ to 4.5″. What is the optimum mowing height for an established grass?

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1 Comment To "St. Augustine grass"

#1 Comment By Downtoearthdigs On 03/21/2019 @ 7:12 pm

I would trust the lawn company. This should only be pruned down to about 4 inches. Any lower risks killing off the grass, or leaving it unable to grow properly.

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