blueberry

Blueberry is a straightforward English compound: blue + berry. The word appeared in the 1700s to describe the native North American fruits of the genus Vaccinium — plants that indigenous peoples had been gathering for thousands of years. The Ojibwe called them miinan. The Wampanoag used them in pemmican and dried them for winter storage. Star berries, as some tribes knew them, were food, medicine, and trade goods long before anyone thought to farm them.

Wild blueberries resist domestication. Their root systems are complex, their pollination requirements are specific, and their growth habits are irregular. Elizabeth White, a cranberry farmer's daughter from New Jersey, partnered with USDA botanist Frederick Coville beginning in 1911 to develop cultivated varieties. Coville discovered that blueberries required acidic soil — a crucial finding that previous attempts had missed. By 1916, they had produced the first commercially viable cultivated blueberry plants.

The blueberry market exploded in the 2000s when research on antioxidants positioned the fruit as a 'superfood.' Studies by James Joseph at Tufts University (2003) suggested blueberries could improve brain function in aging rats. The media simplified the findings: 'blueberries are brain food.' Whether the rat studies translate to humans is debated, but the marketing effect was immediate. Blueberry sales in the United States tripled between 2005 and 2015.

Wild and cultivated blueberries are different experiences. Wild blueberries — harvested from managed fields in Maine and eastern Canada — are smaller, more intensely flavored, and impossible to replicate commercially. Cultivated highbush blueberries are larger, milder, and available year-round in supermarkets. The wild version is what indigenous peoples ate. The cultivated version is what most people buy. The blue is the same. The taste is not.