Companies want to use robotics and AI to revolutionize farming, but first, they have to prove there’s a market for what they’re growing. Robot farming startup Iron Ox has taken the first step in doing so, announcing today that it’s selling robot-reared leafy greens in a single location in California. The firm, which launched last October, is offering three varieties of greens at the San Carlos branch of Bianchini’s Market, a family-owned grocery store that specializes in local and organic produce. Iron Ox is one of a number of companies trying to automate the human-intensive work of agriculture.