Josh Marr stumbled into his calling as an urban farmer during a college internship, when the sociology major worked at a Long Beach community garden set up for inner city kids. Nearly a decade later, Marr is the staff farmer at Esencia Farm in south Orange County’s Rancho Mission Viejo. While communities have been built around golf courses for decades, Rancho Mission Viejo was among the first to make community farms a neighborhood focal point when it began selling homes in 2014. This “agrihood” farm-to-table concept continues to gain momentum both in Rancho Mission Viejo — where there are three farms so far and more planned for future villages — and nationwide, with the Urban Land Institute tracking more than 90 such neighborhoods across the country.