He welcomed his best workers back to Co Cal just before Labour Day.
They drove to a municipal water treatment plant, where Gomez was reunited with his father, a foreman who had started at Co Cal as an H-2B worker but is now a legal US resident on the company's permanent staff.
As landscapers now, the workers will make five times as much as they would in Mexico - even after taxes.
So when supervisors in fluorescent orange safety vests circled the newly arrived crew, Gomez jumped at the chance to start immediately.
But there are simply not enough Americans who want the type of jobs he offers, with regular work only between April and October, especially in a state with one of the nation's lowest unemployment rates.
Over the past 25 years, Medrano has increasingly relied on the guest worker programme to grow his landscaping business - until this year, when Co Cal was denied visas for the 160 Mexican labourers it normally gets.