What's The Right Height For My Grass?
- Jesse
- Mar 24
- 2 min read

What’s the Right Height for My Grass?
Mowing your lawn to the right height is one of the most important factors in maintaining a healthy, lush yard. Cutting too short can stress the grass and invite weeds, while letting it grow too long can lead to thatch buildup and disease. So, what’s the ideal height for your lawn? The answer depends on the type of grass you have and the season. Let’s break it down.
Cool-Season Grasses
If you have cool-season grasses such as Kentucky bluegrass, perennial ryegrass, or fescue, you’ll want to maintain a height of about 2.5 to 4 inches. These grasses thrive in spring and fall, and keeping them slightly taller helps shade the soil, retain moisture, and prevent weeds from taking over.
Warm-Season Grasses
For warm-season grasses like Bermuda, Zoysia, or St. Augustine, a shorter height of 1 to 3 inches is recommended. These grasses grow actively in the summer, and keeping them short encourages dense growth while reducing the risk of disease.
Seasonal Adjustments
Spring & Fall: Keep your grass slightly taller to promote strong root development.
Summer: Raise the mower height to provide shade to the soil and reduce water loss.
Winter: If you’re in an area with dormant grass, the final cut before winter should be slightly shorter to prevent mold and disease.
The One-Third Rule
A good rule of thumb when mowing is to never remove more than one-third of the grass blade at a time. Cutting too much at once can stress the plant and lead to a weak, unhealthy lawn.
Benefits of Proper Mowing Height
Stronger Roots: Taller grass promotes deeper root growth, making your lawn more drought-resistant.
Weed Control: A thicker lawn shades out weed seeds, preventing them from sprouting.
Better Moisture Retention: Longer blades help keep the soil cool and retain moisture, reducing the need for frequent watering.
Healthier Grass: Reducing stress on your lawn leads to greener, lusher turf year-round.
Get Professional Lawn Care Help
Not sure if you’re mowing at the right height? Lawn Hopper provides expert lawn care services in Amesbury, Massachusetts, and surrounding areas. We’ll make sure your lawn stays healthy, green, and perfectly maintained. Contact us today for a free estimate!
By following these guidelines, you can ensure your lawn stays in peak condition throughout the year. For more lawn care tips, check out our other blog posts or reach out to us at Lawn Hopper!
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