Pot Farmer to Neighbors: Chill Out. Neighbors: No.

The first neighbors he met were Glenda and Van Keck, organic farmers who have lived on Dusty Drive since 1974. “They were worried about the cannabis growing right from the get go,” Mr. Wagner said. “And I came over in hopes of quelling their concerns, to introduce myself, and to show them my plans.”

At the time, he wanted to cultivate half an acre of organically grown marijuana, or about 1,000 pounds per year. He told the Kecks he would process in the barn using ice and water, a nonchemical method. Mr. Keck grumbled about his property values, Mr. Wagner said. Glenda Keck was largely silent. “She became very uncomfortable pretty quickly, and she left to go to Costco.” The Kecks did not return phone calls seeking comment.

Parvathy Mahesh said she and her husband, Harihara, were told an older couple was moving in, not a pot farmer. She worried about trucks rumbling past her front yard, close to Mr. Wagner’s gate. And the road was too steep to sustain commercial traffic, she said. “If it was on a private road, that would be one thing,” Ms. Mahesh said. “But this road is shared by all the residents.”

In early March, the Maheshes called the Kecks. Then they went to talk to Mr. Momtazi at his tasting room. “I said, ‘I don’t know anything about this,’” Mr. Momtazi said.

He recalled that he and Mr. Wagner talked weeks earlier. His new neighbor mostly complimented him on his biodynamic farming practices, he said, and failed to mention marijuana. Mr. Wagner said he was hesitant to mention his farm, but did address the topic.

The visit from the Maheshes sent Mr. Momtazi reeling. He wasn’t opposed to marijuana use, but a processing operation was something altogether different. His daughter, Hanna, who oversees events, scoured the internet and found Mr. Wagner’s Instagram account. On Jan. 14, he posted a photograph of the barn, a wall of storm clouds on the horizon.

“The future sight of greenhouses, and processing facility,” Mr. Wagner wrote. “Watch for the build out coming soon!”

Twelve days later, he posted another photograph, this time a selfie, his scruffy brown hair tucked under a baseball cap. “When I’m out on my land, my eyes stay glowing, and I still pinch myself occasionally just to make sure this is real!” he wrote. The posts stretched back to October 2016, about the same time the previous owners were negotiating with the neighbors to make it possible for the Wagners to buy the land.

“He was planning this all along,” Hanna Momtazi said.

Mr. Momtazi and the Maheshes researched the marijuana industry. The more they learned, the more nervous they became. State regulations required the Wagners to install cameras near gates and fences, along with motion sensors and alarms. There was the problem of the shared steep road.

And, despite telling the Kecks he would not use chemicals, Mr. Wagner, in his initial business application, stated he wanted to use solvents, which are highly flammable. This gave his neighbors pause. Many explosions at illicit butane hash oil labs, for example, have been reported in Oregon, leading to fire and death.

When asked about it, Mr. Wagner said he did not intend to mislead his neighbors. But by then, the relationships had soured. An attempt at détente failed. Mr. Wagner said he got into a shouting match with Mr. Momtazi over the phone. “We had very little trust,” Ms. Mahesh said. So, when the county commissioners agreed to hold a hearing in April regarding Mr. Wagner’s processing facility, the neighbors showed up in force.

Furious Messages


Mr. Momtazi on his property, with Mr. Wagner’s home and property in the background.

Kyle Johnson for The New York Times

At 10:49 a.m. on April 13, Mr. Wagner and a dozen of his neighbors and their supporters met face to face in Room 32 in the county courthouse in downtown McMinnville. Mr. Wagner spoke first, outlining his organic farming and processing practices and why he believed he would have no negative impact on the environment.

A pile of grievances followed. Mr. Momtazi warned that the marijuana operation would produce “foul-smelling particles” that could change the flavor of his grapes. He worried, too, that the reservoir he built might get contaminated if Mr. Wagner used pesticides or solvents.

The Maheshes complained about the condition of the road and a lack of privacy once Mr. Wagner’s cameras went up. And the Kecks said the value of their land would plummet next door to a pot farm. Ms. Keck even mentioned that the smell of marijuana set off her migraines.

After an hour and a half, Mr. Wagner and his opponents were spent. “I thought I was going to blackout, I was so mad,” he said. He ended the hearing, telling the commissioners that Yamhill County farmers were once afraid of wineries. But now they were “the lifeblood” of the Willamette Valley.

Three days after the hearing, the Maneshes and Mr. Momtazi petitioned a judge for a temporary restraining order against Mr. Wagner. The petition was denied.

On April 19, The Oregonian published an article about the feud. More than 500 people posted comments online, most in support of Mr. Wagner. Within days, Mr. Momtazi started getting threatening phone calls.

‘We are going to burn the building,” he recalled one person saying on his answering machine.

“They said that?” asked his wife, Flora, who was visiting the winery.

“Yeah, we didn’t tell you that,” he said. “It was really scary. They said, ‘We are going to kill you. We are going to burn the building.’ And that is when we called the sheriff and we found out one of the calves was mysteriously dead. The tail of one of the cows was cut in half.” His wife stared, dumbfounded. “She kept telling us,” Mr. Momtazi said of his wife, “‘You need to be careful.’”

Hanna, Mr. Momtazi’s daughter, retrieved her cellphone. “Ganga rules, man!” one caller shouted. Another left his phone number. She played the recording. “What’s wrong with you,” the man said, his message peppered with foul language. “Try to live peaceably among your neighbors.”

The man was Richard Colvin, 53, a Portland resident who said in an interview he heard about the story from local news. When asked, though, he could not recall what the dispute was about. He blamed the media. “The way it sounded to us it was a bunch of people whining about a marijuana grower,” he said. “Maybe I was feeling bad, but I’m tired of the whole marijuana nonsense.”

He later apologized to the Momtazis. But by then, Mr. Momtazi had had enough. He filed an incident report with the sheriff’s office and told them about the threatening calls. He installed cameras around the vineyard. And Hanna stayed overnight in case an arsonist showed up. Indeed every time the tussle made headlines, like when BuzzFeed wrote about it in August, the winery was subjected to another wave of threats.

As a result, Mr. Momtazi became even more suspicious of the marijuana community. “It is a scare tactic they use,” Mr. Momtazi said of the calls. “That made me more firm.”

The Island of Love


Cannabis plants on Mr. Wagner’s property.

Kyle Johnson for The New York Times

Rick Olson, the former mayor of McMinnville and one of Yamhill County’s three commissioners at the Wagner hearing, met me at the Red Fox Bakery downtown for a cup of coffee. McMinnville has a quirky vibe, a cultural stew of aging hippies, hipsters with man buns and young professionals who enjoy the relaxed Oregon vibe.

Each May the town celebrates its U.F.O. Festival, a weekend extravaganza with parades and costume contests. “We always say there is the Yamhill County and there is the rest of Oregon,” Mr. Olson said.

In June, the commissioners voted to uphold the appeal in favor of Mr. Momtazi and the other neighbors. Mr. Olson said he was concerned about how much water Mr. Wagner’s processing facility might use, as well as the safety of the road shared with neighbors. “We upheld the appeal based on these issues,” Mr. Olson said. “It had nothing to do with whether we like marijuana or not.” Mr. Wagner is not out of the business altogether; he can still apply for a permit to grow marijuana commercially.

The lawsuit filed against Mr. Wagner by his neighbors is pending. Mr. Wagner said the odds of being able to process at his farm are slim to none. Instead he would like to join a farm collective or find an investor to fund his operation. “No one ever really met me,” he said in an interview last week. “It’s like they act like I should go someplace else.”

Mr. Momtazi sent an email last week with one of Mr. Wagner’s deleted Instagram posts that showed the barn against a brilliant sky at sunset. “Right now I am an island of love with an ocean of fear around me,” Mr. Wagner had written. Then, he added, “#xenophobia is #venom to the #haters and those they believe they #hate #manifestdestiny #cannabiscommunity.”

Mr. Momtazi surmised that Mr. Wagner hasn’t exactly embraced them, either. Posts like that split their farm community, he wrote, “causing more hatred toward us.”

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