They're paid about $12 an hour, the same wages as the local crews. But the company also covers the guest workers' travel costs, housing and other fees. Altogether, Andrews ends up paying about $1.50 more per hour for each foreign worker.

But there is a big upside, Andrews says. "They certainly are our very best employees. They come here willing and able to do the job. They're happy to come here and work and work and work."

That's not necessarily a good thing, says Andrea Schmitt, an attorney with Columbia Legal Services in Olympia, Wash., who focuses on farmworker rights. "That's often described by growers as H-2A workers being 'good workers,' in quotes," she says. "Sort of a euphemism for people who follow orders, no matter what."

While the H-2A program includes protections for workers, Schmitt says, these contract employees are still vulnerable to abuses because "they're really far from home, they've been brought here by somebody else and are generally less aware of their rights."

The use of the H-2A visa program has steadily grown in recent years due in part to stepped-up immigration enforcement. Since 2009, the feds have more aggressively audited employers to ensure their workforces are legal. It's this audit process that led to HerbCo's criminal prosecution, massive staff turnover — and a $1 million fine.

"At the end, we want to reduce the magnet for illegal immigration, and that is employers," says Waldemar Rodriguez, a deputy assistant director with U.S. Immigration and Customs Enforcement's Homeland Security Investigations.

Rodriguez says the agency's recent shift to targeting employers more than workers is paying off. Last year, the agency set a record for these immigration audits and subsequent criminal arrests.

Back at the HerbCo farm, Augustina Reyes waters row after row of basil plants inside an 85-degree greenhouse.

Reyes, who came here on the H-2A program from Oaxaca, Mexico, says the visa program is perfect for her. She used to sneak across the border for work, she says, but prefers the less-risky trip as a guest worker. "It's better to come with the program because I don't have any trouble coming here," she explains.

Reyes is on a seven-month contract and expects to save up $4,000 to $5,000 to take home, after deducting her stateside expenses, such as cell phone bills and groceries.

Farm owner Ted Andrews hopes to see improvements in the guest worker program included in the immigration reform bill passed by the Senate and now stalled in the House. Most H-2A visas last 10 months or fewer, but Andrews would prefer to employ guest workers for an entire year. He's also had to hire extra staff to navigate the complex program and complete the required paperwork, he says, and has had guest workers arrive several weeks late. That's disruptive for growers who rely on a large labor force during a short harvest window, he says.

Despite these challenges, Andrews says, the biggest lesson from his immigration event makes the program well worth the effort: "It's about the people. The people make the harvest."

If you take care of your employees, he says, they'll take care of you.

Copyright 2013 Puget Sound Public Radio.

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After Immigration Bust, Herb Grower Tries a New Path