Wed, 11/22/2023 - 05:04 Tech Insider Business Insider food correspondent Nancy Luna tours the Plenty vertical farm in Compton, California. Walmart invested in Plenty in 2022, and the urban farm supplies Walmart stores in the Golden State.Business Insider; Plenty Tags Retail, Retail Innovation, Robots, Farming, urban-farming, urban-farm, food-supply, whole-foods, walmart Source I visited an indoor farm in Compton that's growing leafy greens for Walmart and…