Natural grass plan for 2026 World Cup domes

reinventing stadium – For the 2026 FIFA World Cup, researchers from Michigan State University and the University of Tennessee are working to place real grass on stadiums that were built for artificial turf—using two main grass types, carefully matched to climate and stadium design,

On May 26. grass is already moving into stadiums for the 2026 World Cup—and in Houston. it’s not just late. it’s last. The turf is scheduled to go in during the last week of May. even as other venues have already installed sod and used test matches to learn how their new natural playing surface behaves.

This is not the familiar story of a field being green again. The work is being done by turf experts who’ve spent roughly five years trying to make a stubborn idea fit a complicated reality: FIFA is demanding real grass. and many of the 16 World Cup host cities and stadiums were built with artificial surfaces as their default.

The stakes are visible every day in the world’s most watched matches. Players will feel differences in how the ball bounces, how fast it moves, and whether it “sticks.” Even if the audience never notices the grass directly, elite athletes can—and FIFA is chasing that kind of familiarity.

John Trey Rogers III. a professor in turfgrass management at Michigan State University. walked through the plan in a conversation late last month. describing how his team and the University of Tennessee have been forced to treat turf like engineering: selecting species. planning logistics. and proving that the field can survive the wear of World Cup play.

FIFA’s starting point is simple in principle and difficult in execution. Rogers said FIFA has not played a men’s World Cup game on anything but natural grass since the tournament’s inception, and he expects that to hold for 2026.

The real problem sits in the stadium map. Rogers said FIFA identified 16 cities across three countries—three in Mexico. two in Canada. and the rest in the United States. Within the United States’ 11 stadiums, seven of those venues are multiuse stadiums whose playing surfaces typically are artificial. And five of the 16 stadiums are in domes. which Rogers described as “certainly weren’t built for natural grass. ” with one small exception in Houston.

That’s why Michigan State University and the University of Tennessee were tasked with a specific challenge: getting natural turf into stadiums that were never designed for it, and doing it with evidence-based research starting around 2020.

At the center of the effort are two main categories of grass. Rogers said the cool-season option is a mixture of Kentucky bluegrass and perennial ryegrass. The warm-season choice is Bermuda grass, a grass used mostly around the world.

The decisions aren’t about what sounds good. They’re about what fits the venue.

Rogers said dome stadiums will use all the cool-season grasses. Even with supplemental light and grow lights. he said the lighting is not strong enough to support what a warm-season grass would need. Inside. the environment changes the equation: in the domes. temperatures are expected to sit around 72 degrees or 73 degrees Fahrenheit. rather than the heat that might reach 105 degrees Fahrenheit outside.

That’s the part that “blows people’s minds,” Rogers said—because Houston, Atlanta, and Dallas are exactly the kinds of places where a lawn grass choice would normally seem wrong. But inside domes, the cool-season grasses can survive because they aren’t exposed to the extreme heat.

Warm-season grasses are reserved for places where the weather works better with them. Rogers said two Mexico stadiums—Monterrey and Guadalajara—will have warm-season grass. He also said warm-season grasses will be used in San Francisco, Kansas City, and New York/New Jersey. Miami is included as well.

Then there’s Mexico City, the exception that needs altitude to make sense. Rogers said Mexico City will use a cool-season grass: perennial ryegrass and Kentucky bluegrass. He said the research showed that. because Mexico City is nearly 8. 000 feet above sea level. it “doesn’t get as warm as you think. ” making a warm-season grass a worse fit. Rogers said they showed Azteca Stadium—also called Banorte Stadium—and worked with the stadium staff to agree on changing grasses.

All of this sits inside a bigger truth that turfgrass professionals learn early. Rogers said there’s around 20 grasses around the world that people could use. and he said in turfgrass 101 students learn to identify around 20 that could be relevant. He described the job as inherently imperfect: there’s “no such thing as the perfect turfgrass.” Every grass has an Achilles’ heel. because “one size fits all” doesn’t exist.

That idea—no perfect grass, only the right grass—shapes how the World Cup fields are planned.

There’s also the question of what happens when the grass gets abused for a week-to-week sports calendar. Rogers said the reinforcement FIFA-style grass may be “reinforced” without changing the growing process. The reinforcement is a synthetic element, available in two forms. One method uses fibers stitched into the ground with seven-foot-wide sewing machines on one-by-one-inch centers. The other method prepares a carpet—synthetic, with very open backing—then brings it from a sod farm.

Rogers said both approaches are being used because each city can choose what it wants. He added that the stitch normally is done after the sod is installed.

The plan has been made harder by another practical reality: transport.

For the dome stadiums using cool-season grasses, Rogers described a north-to-south mismatch. He said Dallas, Houston, and Atlanta sit in the South and Southeast, and the grasses had to be grown in a northern climate. Rogers said those grasses had to come from just outside of Denver, Colorado.

In some cases, that meant the sod traveled more than 1,000 miles. Rogers said similar patterns affected Los Angeles, where sod came from central Washington. The point, he said, is that the sod had to be cared for during the trip and transported in refrigerated trucks so it doesn’t heat up.

Transport isn’t the only hurdle. Rogers spent time on sod preparation. a process he said is unique to the United States at the moment: growing sod on plastic—big sheets of plastic. He described it by analogy: like lifting a potted plant out whole. with roots stopping at the edge of the pot. sod on plastic establishes the grass until the roots grow down to the plastic and then laterally.

That produces strong sod for moving around. But the most important outcome is physiological. Rogers said the system helps avoid transplant shock—when a plant has to reestablish a new root system from scratch.

Anyone who’s dealt with sod at home, Rogers said, knows the consequence of getting watering wrong: if you don’t water sod for a week, it can burn up and die. With sod on plastic as they’re delivering it, Rogers said those issues are mitigated—making it “one of the big keys to success.”

The installation schedule shows how much this has been treated like a deadline with moving parts. Rogers said the sod is in every stadium except one as of May 26, and that the remaining venue is Houston. He said Houston’s sod is going in during the last week of May.

Some stadiums had been going longer because they carried out test matches. Rogers said these tests were done in places like Boston and Seattle—venues that wanted to do test matches but aren’t domes. He tied the complexity to what happens when a stadium that hasn’t had natural grass suddenly gets it: it has to “learn your animal. ” meaning how the grass reacts and whether there are idiosyncrasies they need to understand.

Rogers contrasted this with cities where natural grass is already the norm—Kansas City, Philadelphia, San Francisco, and Miami—where they wouldn’t need to adjust.

For FIFA, Rogers said the reason for insisting on natural grass is grounded in what elite players already expect. He said the best leagues in Europe are always played on natural grass. and that those competitions shape the majority of the world’s top players—even when athletes come from Australia and play in Europe.

There’s also performance experience embedded in training and repetition. Rogers said the natural grass provides “the best performance” by giving everyone something they’re used to, and that even reinforcements in Europe are part of what players learn.

His most direct explanation was about matching play. FIFA wants the grasses to play the same across venues. Rogers said that top players notice when something changes: how the ball bounces. how fast it is. and whether the surface makes it “stick.” He compared it to professional golf. where players can tell how a green is reacting.

The person he is describing isn’t a fan casually watching a match. He’s a turf professional who said he doesn’t receive many stadiums or fields where he isn’t critiquing.

He described the work itself as intense, too. Rogers said he’s spent a lot of time in airplanes looking at sod farms across North America. describing that the sod farms are located throughout the continent. He said a colleague. John Sorochan. spent time doing the same because FIFA counted on them—Rogers described his role as an agronomist—to bring the turf plan into reality.

He also made space for the people behind the science. Rogers said he had three graduate students working with him through the project. One has gotten a master’s, one has achieved her Ph.D., and another is about to achieve his Ph.D.

At nearly 67, Rogers said he’s at the end of his career, but called the project both “intense” and “very enjoyable.”

When the World Cup finally starts. the most careful part of the work may be the part nobody thinks about: the grass that nobody particularly notices “one way or the other.” Rogers said the ultimate goal of all this planning. transport. installation timing. and climate matching is exactly that outcome—an even playing surface built to meet the demands of the sport’s biggest stage.

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