Lawn Grasses by State: What 30 University-Backed Guides Show (2026)

The most common grass types across our 30 state guides

Here is the full table of common grass types by state. The first entry in each row is the grass that state's guide names as the most common, following that state's extension guidance, and the rest are the other species that commonly show up in that state's lawns.

The warm-season belt is really a bermudagrass belt

Across the Deep South and the hot southern plains, one grass keeps winning. Per the state extension programs our guides follow, bermudagrass is the most common lawn grass in Alabama, Arkansas, Georgia, Mississippi, Oklahoma, Texas, and the low desert of Arizona. That is seven of the 30 states we have covered, and they form a fairly clean geographic band. Arizona is the partial one in that group: the University of Arizona calls bermuda the best-adapted turfgrass for the heat around Phoenix, Tucson, and Yuma, while the high country above roughly 5,000 feet switches to cool-season blends instead.

The reason is not mysterious. Bermuda handles full sun, heat, drought, and foot traffic better than almost anything else, and those four things describe the average southern yard in August. Where bermuda loses, it loses to shade. That is exactly where St. Augustinegrass takes over, and it is why UF/IFAS calls St. Augustine the most commonly used lawn grass in Florida, and why LSU describes Louisiana home lawns as primarily St. Augustine and centipede. Both states are humid, both are full of tree cover, and both sit far enough south that winter never really threatens a warm-season lawn.

The cool-season north is a Kentucky bluegrass story, with an asterisk

Head north and the picture gets simpler. Kentucky bluegrass is the most common grass in eleven of our guides now: Colorado, Illinois, Indiana, Iowa, Michigan, Minnesota, Nebraska, New Jersey, Ohio, Pennsylvania, and Wisconsin. University of Minnesota Extension goes as far as calling it the most popular turfgrass in that state, and Illinois Extension calls it by far the most popular species in Illinois home lawns. In practice it is almost never planted alone. Nearly every one of those guides describes it as part of a blend with perennial ryegrass and fine fescue, which is why perennial ryegrass shows up in 16 of our guides and fine fescue in 20 despite rarely being anybody's headline grass.

The transition zone is where the simple answer breaks

This is the real headline in the data. Twenty-two of our 30 state guides list both warm-season and cool-season grasses as common. Only eight of the states we have covered are clean one-season states: Florida and Louisiana are all warm, and Iowa, Michigan, Minnesota, Ohio, Washington, and Wisconsin are all cool.

The transition zone states are the ones that make people miserable, and tall fescue is how most of them cope. It is the most common grass in our Kansas, Kentucky, Maryland, Missouri, North Carolina, Tennessee, and Virginia guides, plus California for entirely different reasons. Tall fescue wins there not because it is the best at anything, but because it is the least bad at everything: it tolerates more summer heat than bluegrass and more winter cold than bermuda.

Kentucky is my favorite fact in this whole dataset. The most common grass in Kentucky is not Kentucky bluegrass. It is tall fescue, and the state's own extension service says so: UK Extension calls tall fescue the most widely adapted and best lawn grass for Kentucky, because bluegrass is only marginally adapted to the state's summer heat.

Washington breaks the simple answer a different way. It is the only state we have covered where the guide names a mixture rather than a species, because the Cascades split it into two lawn climates: WSU advises against Kentucky bluegrass as a pure stand west of the mountains and caps it below half of any mix there, so the classic Puget Sound lawn is perennial ryegrass and fine fescue, while east of the crest bluegrass is the common choice. One state, two answers, and the state line tells you neither.

California deserves its own note. With 9 common species it is the most diverse state we have covered, and it is the only guide where kikuyugrass appears at all. That is what happens when one state contains coastal fog, interior desert, and mountain snow.

How we compiled this

Read this section before you cite anything above, because the scope matters.

Every number on this page is a count of our own published work. We have written 30 "Types of Grass in {State}" guides, and each one is grounded in that state's land-grant university extension recommendations, which is where claims like "the most common grass in Florida is St. Augustinegrass" originate. To build the dataset we pulled the species each guide lists as common for that state, plus the grass each guide names as the single most common, then counted with a script.

So this is an editorial compilation, not a field survey. We did not measure lawns, sample properties, or count sod sales. Nobody publishes a national census of lawn species that way, which is exactly why we built this from extension guidance instead. When we say bermudagrass is the most common grass in Texas, we mean that is what the state's turf authorities identify as the dominant lawn grass, and that claim traces back through our Texas guide to its extension sources.

Two limits worth stating plainly. First, this covers 30 states, not 50, so every aggregate here describes our corpus and not the country. Read "28 of 30" as "28 of the 30 guides we have published," never as a national percentage. Second, frequency across our guides reflects which states we have covered so far, and that selection leans toward high-population states, so it is not a random sample of American lawns. That second limit is not theoretical, and the leader counts show it: our first 20 guides had bermudagrass and tall fescue tied at six states each, and adding ten mostly northern states moved Kentucky bluegrass into the lead at 11. The ranking describes our corpus as it grows, not a change in American lawns.

Citing this data

Writers, publishers, sod producers, and researchers are welcome to cite any figure on this page, with attribution to What Grass Is This and a link back so readers can see the methodology. Please describe it for what it is: a compilation of university-extension-backed state guides, covering 30 states. If you need a figure we did not publish here, the per-state guides linked in the table above have the detail, along with the extension sources behind each one.

What to do with this if it is your lawn

Averages are useful for writers and useless for your backyard. Your state has around five candidate grasses, and the care calendar for bermuda looks nothing like the care calendar for tall fescue. Mow one at the other's height and you will spend a season wondering why your lawn looks rough.

So here is the order I would work in:

1. Identify what you actually have. Your state narrows it to five candidates, and a photo narrows it to one. Upload a photo for a free grass identification and skip the guessing.
2. Read your state guide. Use the table above to find yours. It covers regional differences within the state and the timing that matters locally.
3. Compare your options if you are renovating. The grass comparison tool puts water needs, shade tolerance, and maintenance side by side, and our lawn care guides go deeper on each species.
4. Get a care plan built around your grass. Once you know the species, our personalized 12-month care plan tells you what to do each month instead of leaving you to translate generic advice.

One budget note while you are planning. Species drives cost as much as it drives care, since a thirsty bluegrass lawn and a low-input centipede lawn do not spend the same money over a year. Once you know your grass, see what caring for it actually costs in our 2026 lawn care cost estimates, with average prices by region.

The most common grass in your state is a fun fact. The grass in your yard is the one that determines everything else, and those two are different often enough that it is worth thirty seconds to check.