When Should the Grass Be Cut?

Have you ever asked “When should the grass be cut and how long should I let it get before causing problems?” 

I mowed the lawn for our family when I was a kid and my parents were always telling me not to wait to long before the next grass cutting. But no one back then gave me an actual measurement so after a lot of trial and error and working in this business for years I came out with my own rule of thumb.

How to know when to cut the grass or how long you should let the lawn reach before cutting it is perhaps the most frequently asked questions I get about lawn care that people have. And, “How much of the grass blade should be removed at one time when you are cutting grass?” is a natural companion to that first question. I’m here to straighten it out for you the best I can.

My General Rule of Thumb

How do you know when to mow and how high you should let the grass get before mowing? Well, my general rule of thumb for determining what the grass height should be on your lawn. An optimal height for a cool-season grass generally is about 2 1/2 inches. And every time you mow, you should only be removing about the top 1/3 of the grass blades. Consequently, a good time to mow lawns is when your grass is around 3 2/3 inches high.

This is what I recommend that you stick to this rule of thumb in fall and, then we’ll talk about the summer. In summer, mowing at a greater height is almost a given because the grass grows so fast. It is not a bad idea, in fact, to choose one of the higher settings on your lawn mower wheels when the weather starts getting really hot, and just mow at that height until we approach the fall season and the weather starts to get cooler this will help grass that’s too short from burning.

My Rule of Thumb Explained

Why do I recommend 2 1/2 inches of grass height in general? Well, what you are striving for is a balance between not leaving it to long or cutting to short. 

On the one hand, if you are letting the grass get tall, you are not mowing very much, which means you are passing up opportunities to stimulate good grass growth and make your lawn healthier and more attractive. But if you cut the grass too short also known as “scalping,” you stress it.

While the 2 1/2-inch height for a cool-season grass is optimal for the fall, it’s not the best in the summer or hotter mowing season. 

Some experts recommend keeping lawn grass around 3 inches tall during spring and summer. Why? Because the extra shading that results may inhibit crabgrass enough to keep it in check. In fall, you can go back to maintaining the 2 1/2-inch height.

Or you can just skip the mowing and call Lawn Care Port Orange for all of your mowing needs.

Lawn Care Port Orange knows what length to cut it and if we are taking on new clients we’d be happy to give you and estimate so call now to find out.

Lawn Care Port Orange
386-675-0197