The short answer
Keep St. Augustine grass between 3.5 and 4 inches tall. That is taller than most people think, and it is the single biggest thing you can do for a healthy lawn in Hernando County.
Why taller is better here
St. Augustine has wide blades and shallow roots. Tall grass shades its own roots, holds moisture through a hot afternoon, and crowds out weeds. Scalp it down to 2 inches and the sun hits the soil, the roots cook, and dollarweed and crabgrass move in within weeks.
The one-third rule
Never cut off more than a third of the blade in one mow. If the lawn got away from you after a rainy week, take it down in two passes a few days apart instead of one hard cut.
Mower blade matters
A dull blade tears the grass instead of cutting it, and the torn tips turn brown. Sharpen or replace the blade every 20 to 25 hours of mowing. Our crews swap blades weekly in summer.
Summer versus winter
From May through October, mow weekly at 4 inches. From November through March, growth slows and every two weeks at 3.5 inches is plenty. Bahia grass, common on larger Brooksville lots, likes the same 3.5 to 4 inch range.
Want it handled?
Supreme Landscape mows Spring Hill, Weeki Wachee, and Brooksville lawns at the right height on a set schedule. Call or text 727-809-8150 for a free quote.
