A grocery store has an average of 1,500 food miles per product. Consider garlic Since 2012, 90 percent of the garlic distributed in grocery stores comes from China, so when you grow your own, that’s 6,500 less food miles. Fewer food miles mean significant reductions in ship and truck emissions that harm the environment. In effect, local foodscaping supports global sustainability.
Source: Lewis Gintre Botanical Garden by Foodscaping Lynn Kirk: https://www.lewisginter.org/foodscaping/