The Brief

One of the world’s most high-tech indoor vertical farms is right here in Southern California, in Compton.

I headed there to find out more about what role indoor farming may play in the future of food. As increasingly extreme weather driven by human-caused pollution in the atmosphere makes it harder — if not impossible — to farm outside in formerly high-producing regions, could farming indoors be part of the solution?

I admit I’m pretty skeptical of this high-tech farming. How practical is it? What are the tradeoffs? And how much does this farm really benefit Compton?

Those were the questions I wanted to answer as I pulled into the parking lot of a clean white warehouse in north central Compton. The formerly empty warehouse is across from a neighborhood and next to a larger industrial building and yard full of big-rig trucks.

Inside, is the flagship commercial-scale farm developed by San Francisco-based startup Plenty. It officially opened last May and is the West Coast’s largest indoor vertical farm.

When I walk in I’m greeted by cool air conditioning and Erin Santy, the company’s media liaison. She walks me upstairs to the mezzanine. From there, I can see huge robot arms moving tall, thin towers of greens.

“When you say farming, this is not what I think of, but how cool that it can be?” Santy said. “Fifty years from now, what will people think of?”

The indoor vertical farm in Compton is highly automated.

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Courtesy Plenty

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Why farm indoors? 

Within 100,000 square feet, the farm can grow some four million pounds of spinach, kale, spring mix and arugula every year. That amount adds up to about 16 million of those packages of greens we see at the grocery store. And it's produced within a much smaller area than what's need to grow the same amount outside.

They sell at Whole Foods, Bristol Farms, Gelson’s and most Walmarts in Southern California. They just launched a partnership with 7/11 to sell salads there too.

“We want to be able to deliver a locally grown fresh product and part of that is how do we get it closer to the people who are eating it?” Santy said. “Some of that is about growing in a more urban and dense area like Compton.”

An aerial view of the indoor farm in Compton.

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Courtesy Plenty

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She said the prices are on par with organic for now, since it’s so expensive to build these farms and they’re not common. But she said the prices don’t fluctuate like conventionally grown greens because they’re not affected by weather volatility or supply chain disruptions.

One of the biggest perks of indoor farming is that it can use as much as 98% less water than conventional farming, said researcher Shamim Ahamed, who studies advanced farming techniques at UC Davis. But he said the biggest drawback is that it also uses a lot of electricity. That’s because they need to use artificial light to grow the plants as well as keep specific temperatures inside.

“That's basically the prime reason for having a high carbon footprint,” Ahamed told LAist.

He said because the power grid is getting cleaner overall, that footprint will continue to go down. And there are lots of ways these indoor farms can use energy really efficiently or generate their own cleaner energy on site, Ahamed said.

Erin Santy, media liaison for the startup Plenty.

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Erin Stone

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LAist

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Santy said Plenty used solar to generate their energy on their far smaller pilot farm in Northern California, but she said they didn't go that route for their Compton site because they don't have the space for the number of panels they'd need. She said the amount of electricity generated by putting panels on their rooftop would be essentially negligible and didn't pencil out. She added the current mix they're paying for from the power grid is currently about 40% renewable sources.

And, Ahamed pointed out, conventional agriculture also has a huge carbon footprint. Mostly due to land use changes, livestock and soil depletion, large-scale farming accounts for about a quarter of human-caused global greenhouse gas emissions and about 10% of the U.S.’ total greenhouse gas emissions.

Plenty's indoor vertical farm in Compton is in a formerly empty warehouse.

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Courtesy Plenty

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But there are limits, at least right now, to what food can be farmed indoors in this way. Ahamed said indoor vertical farming works for certain crops, such as leafy greens, strawberries and tomatoes — crops that are also highly vulnerable to the impacts of climate change, he said.

While Ahamed said indoor farming can’t completely replace farming outdoors, he said it does play a role in the future of our food.

How the farm works

Before going inside Plenty’s Compton farm, we have to get dressed in full protective gear and sanitize everything.

The greens never get touched by human hands: The environment is kept so clean they don’t need pesticides. That means they also don’t need to be washed before being eaten, so the greens don’t get that “triple wash” like many we buy at the grocery store.

Machines place seeds in a soil tray at Plenty's indoor farm in Compton.

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That, plus the fact they’re grown so much closer to the stores where they end up, means Plenty’s greens have a longer shelf life, staying fresh for as many as 21 days, Santy said.

Once we’re fully suited up, we head inside.

Seed trays getting irrigated with a precise amount of water in the seeding room.

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Courtesy Plenty

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First stop is the seeding room. Seed trays run along a conveyor belt, where machines place a precise number of seeds into the soil, then squirt just enough water and nutrients on top.

Then we head into a brightly lit room full of colorful lights called the propagation room. I can’t take pictures — the specific combination of artificial light in here is proprietary because it’s the company’s secret sauce for helping the plants grow faster. They’re ready to harvest in around 30 days, instead of the 60 to 90 it would take outside in the field, Santy said.

After a couple weeks in this room, the baby plants are routed on a conveyor belt to a series of robots that pull them from the trays and place them into growing towers that are several stories high.

“Imagine how delicate the fingers of that robot have to be to lift it without ripping the plant or tearing the roots,” Santy said.

Robot "fingers" pluck plants from trays and place them in a growing tower, where they'll eventually be ready to harvest.

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Courtesy Plenty

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Then, the towers full of plants are transferred by a much larger robot arm to another conveyor system that moves them into the final growing room.

“When you're able to stand in front of a 30 foot wall of lettuce, that’s when it gets really cool,” said Yatae Lewis, the farm’s site operations manager. “I tell people I work at Willy Wonka's Chocolate Factory.”

The light in here is super powerful and also proprietary. This is where the plants stay for a couple weeks until they’re ready for harvest. Stories of lush purple and green spring mix and kale and spinach tower above me.

And it’s humid. All the water the plants in this room respirate, or essentially sweat out, is recycled. That helps the farm use about 90% less water than conventional growing, Santy said.

The final growing room. The light is proprietary, which is why LAist couldn't take its own photos. That artificial light helps the plants grow about twice as fast as they would in the field.

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Courtesy of Plenty

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Courtesy Plenty

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Leafy greens grow inside a high-tech indoor vertical farm based in Compton and developed by San Francisco-based startup Plenty.

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Courtesy Plenty

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What the farm means for Compton

Farming is actually nothing new to Compton. In the early 1900s, Compton was an agricultural hub. Compton Creek, a major tributary to the L.A. River, made for a reliable water source and rich soil. Southern California sunshine made for ideal growing conditions.

Compton’s Mayor Emma Sharif said the Plenty indoor farm is a way to bring that legacy back in a new way.

“This isn't just a nod to our past. It's a bold step into the future of farming,” she told LAist.

A robot "arm" that moves the towers of greens onto a conveyer belt that takes them to the final growing room, where they'll be ready to harvest after a couple weeks.

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Courtesy Plenty

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And Sharif said a big reason she supported the company coming to Compton was that it brings needed jobs. Part of the city’s agreement with Plenty is that at least a third of the farm’s 70 employees have to be from Compton. As of now about 31% are, said Yatae Lewis, the farm’s site operations manager.

Lewis grew up in Long Beach and has lived in Compton for 20 years.

Yatae Lewis is the site operations manager at Plenty's indoor farm in Compton.

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Erin Stone

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LAist

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“Compton is known for so many things,” Lewis said. “Indoor farming is absolutely not one of them. So being a part of changing the narrative of Compton was something that I absolutely jumped at.”

He’s worked here for three years, and watched the farm go from empty warehouse to indoor growing powerhouse. He said that while the number of jobs may not be high, the quality is.

“We want jobs, and not only jobs, we want good jobs,” Lewis said. “And not only good jobs, we have jobs that we can brag about. If we can do that for 30% of the workforce, that's amazing.”

Yatae Lewis holds leafy greens in a photo from 2022, before Plenty officially launched its flagship commercial indoor farm in Compton.

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Courtesy Plenty

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Lewis said the jobs for Compton locals range from field techs to growers to managers. The majority of roles in the farm have no educational requirements and they offer competitive pay as well as benefits, Santy said. Lewis said one of their Compton employees was able to afford her dream of traveling to South Korea for a K-pop concert recently.

“If we have an individual that now has a passport and can see the world and bring that back to Compton because they work at Plenty, that's what we're rooting for,” Lewis said.

Lewis, who also serves as Plenty’s community liaison, said the company has partnered with the Compton Run Club to co-host events and fundraisers, and they have partnerships with seven local middle schools to highlight STEM education.

“I have a 13-year-old, and he's into robots, he's into engineering, he's into computer coding,” Lewis said. “When I bring him to a bring-your-kid-to-work day and he sees the robots and he talks to the engineers, his mind is blown. It's very humbling and encouraging that my son's dream job can be five minutes away in the city that he lives in.”

Southern California was built on radio.

"I can still hear the jingle KFWB News 98,” wrote  Taline in Los Feliz, during a recent conversation on LAist's daily news show, AirTalk, which airs on 89.3 FM. “I grew up hearing that in my dad's minivan on the way to and from school. It has a special place in my heart.”

Back in April, broadcast company Audacy announced KNX News — one of the last-remaining all-news FM stations — was leaving the FM dial where it had simulcast on 97.1 FM since 2021. The station, which is also one of the oldest in L.A., is not budging from 1070 AM where it has been on the air for more than 100 years. The move away from FM officially happened in May to make way for a new sports talk station, which Audacy officials called an area of growth for advertisers in today’s media landscape.

The move is one in a long line of changes for radio and a reminder that before podcasts, playlists and algorithms, many Southern Californians built their days around radio broadcasts.

Radio, a daily ritual

The construction of KNX

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Herman J. Schultheis

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Los Angeles Public Library

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Michael Jackson, a well-known KNX, personality

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Los Angeles Public Library

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Larry Mantle, now in his 41st year hosting AirTalk, remembers being a kid and dreaming of what it might be like to be behind the mic at one of these radio stations.

“ I grew up with KNX," he said. “My dream job as a kid was to be an anchor on KNX or KFWB, the two local all-news radio stations, 'cause there was nothing like hosting AirTalk that even existed at that point.”

Mantle opened up the phone lines on a recent show to hear from his fellow SoCal radio lovers about the shows they miss and the memories they have. Here's what they had to say:

A love for radio, then and now  

A pilot of KMPC's traffic alert helicopter pictured with his daughter and grandson.

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Los Angeles Public Library

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A 1963 picture of Valley State College (now Los Angeles Valley College) preparing to launch KVCM

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Larry Leach

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Los Angeles Public Library

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“When you'd walk down Hollywood Boulevard where the station was, you could hear it playing as you went down the street,” said  Olivia in Glendale about KLAC 570 with Al Jarvis.

 Larry in Yorba Linda shouted out KBCA Jazz for its 24-hour jazz, saying “When I first moved out here in '68 from Phoenix, which had like an hour a week, it was a real wonder.”

 Mark in Glassell Park emailed that he loves KCRW’s Henry Rollins, writing, “I used to bristle at his unique DJ persona, but over time, I came to love him and his crazy eclectic playlists. I find his knowledge in history and punk rock fascinating. He's a gem and a legend."

"I'd like to give a shout-out to all the DJs working at KXLU, the college station at Loyola Marymount University, said  Jeremy in Culver City in an email. “That station's been on the air for nearly 60 years. I believe it's one of the best examples of what's possible with radio."

"KFWB and KRLA back in the day when they were rock music stations —  Dr. Demento, one of my favorite on-air personalities, also had eclectic music taste," said  Carrie in Desert Edge.

“ Dr. Demento was must listening when I was a kid in junior high school at Le Conte Junior High in Hollywood,” Mantle added. “Every Sunday night on KMET, we would make sure we were listening to Dr. Demento and his funny records.”

The question remains…

An 11-year-old winning a car in a KMPC contest in 1963.

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Los Angeles Public Library

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Listener support is vital to any radio station, and it’s clear KNX has many lifelong fans. AirTalk listeners highlighted their support for household KNX names over the decades like Bill Keene, Melinda Lee, Mike Roy and Jackie Olden.

As KNX makes changes, many are watching closely and thinking about the future of radio.

Listeners like Tommy in La Quinta are left wondering if the radio dial will be the same…

“I’m a hardcore listener, but I don't know about casual listeners [and] if they'll tune to AM,” he said.

After months of hand-wringing, Los Angeles and LA28 have come to a tentative agreement on how Olympics organizers will reimburse the city for its expenses for the 2028 Summer Games.

According to the deal, the private Olympic organizing committee will pay upfront for the estimated cost of services that are not eligible for federal reimbursement, like trash pick-up and traffic control. Under another proposal, the city would also be able to tap an LA28 contingency fund if it isn't fully repaid by the federal government for policing costs at Olympic venues.

The agreement is nearly nine months overdue and still needs approval by Mayor Karen Bass and the City Council.

The 2028 Olympics are intended to be privately financed, and an existing city agreement with LA28 states that the Olympics organizers, not L.A., will pay for extra costs for public services in support of the Games. But L.A. is the financial back-stop for the Olympics, meaning if LA28 goes in the red, taxpayers will pick up the bill.

Beyond that, the city services agreement presents another area where L.A. could incur additional unexpected expenses for hosting the Games. L.A. City Councilmember Monica Rodriguez warned LA28 CEO Reynold Hoover earlier this year that a bad deal could "bankrupt" the city.

Jacie Prieto Lopez, an LA28 spokesperson, and Paul Krekorian, who leads the city's office of major events, said in statements that the freshly inked agreement would help deliver a fiscally responsible Games.

"Mayor Bass’ priority is that the 2028 Olympic and Paralympic Games be fiscally responsible, protect taxpayers, and benefit Angelenos for decades to come. This agreement helps deliver that commitment," Krekorian said.

But the contract between the two parties doesn't fully resolve one of the biggest areas of financial risk for the city: the enormous cost of security for an event as extensive and high-profile as the summer Olympics and Paralympics.

Organizers are counting on the federal government to pay for public safety at Olympic venues that are considered part of a "national special security event." That includes costs for LAPD staffing. LA28 has not included security costs in its $7.1 billion budget — a fact that City Attorney Hydee Feldstein Soto criticized earlier this year.

The federal government has so far allocated $1 billion for security costs for the Olympics. Exactly where those federal funds will go has not yet been determined, and there's no guarantee they will cover all of L.A.'s policing costs.

To address this, city officials have also proposed an amendment to a 2021 agreement between the city and LA28. That amendment would establish that if L.A. is not reimbursed by the federal government for all its eligible expenses, it could dip into LA28's contingency fund of $270 million before the private organizing committee could use those funds for any legacy projects.

But that bucket of money will first be used for any costs that Olympics organizers still owe if they run out of revenue — meaning if the Olympics don't turn a profit, the city's access to that money will depend on how much is left for the taking.

Civil rights attorney Connie Rice, who has been tracking the city's negotiations with LA28, told LAist the agreement was a "PR document" not a deal. She pointed out that if the federal government does not pay up for security spending as expected, L.A. could be in trouble.

" It leaves the taxpayers with a GoFundMe strategy," she said.

The city services agreement lays the groundwork for more negotiations between LA28 and the city. Each venue will require its own agreement, to be negotiated by July 1, 2027. Venues in the city of L.A. include Dodger Stadium, the L.A. Convention Center, L.A. Memorial Coliseum and the Venice Beach Boardwalk.

The City Council's ad-hoc committee on the 2028 Games will meet Tuesday afternoon to vote on the agreement.