Tomato

The tomato's wild ancestors originated in the Andean region of South America, but the plant was domesticated further north -- Aztec farmers in central Mexico were cultivating tomatoes by around 700 AD and gave the fruit its name, xitomatl, in Nahuatl, the root of the modern word. Spanish colonizers, most likely following Hernan Cortes's conquest of Tenochtitlan in 1521, carried tomato seeds back to Europe in the early 16th century.

Europeans were slow to eat what they grew. Because the tomato belongs to the nightshade family, Solanaceae, alongside the genuinely toxic deadly nightshade, it was met with suspicion for roughly two and a half centuries -- Italian herbalist Pietro Andrea Mattioli even classified it as a type of mandrake in 1544. Tomatoes didn't become a common food in Europe until the late 1700s.

Heirloom tomatoes are open-pollinated varieties passed down over generations -- typically at least 50 years -- that grow true from saved seed and are prized for flavor diversity and unusual colors and shapes, though often at the cost of disease resistance and uniform yield. Hybrid varieties are deliberately cross-bred between two parent lines to combine specific traits like disease resistance, uniform ripening, or higher yield.

Most tomatoes sold as fresh produce in grocery stores are hybrids bred for shelf life and transport durability, while heirlooms remain a mainstay of home gardens and farmers' markets, where flavor and variety typically matter more than uniformity.