Blueberry

A true berry

Blueberries are botanically true berries — fleshy fruit from a single ovary with seeds embedded in the flesh. The pale “bloom” on the surface isn’t dirt or pesticide residue; it’s a natural waxy coating that protects the berry from moisture loss and microbial damage. Don’t wash it off until just before eating.

Wild vs. cultivated

The deep-purple supermarket blueberries are mostly Vaccinium corymbosum — the highbush blueberry, a 20th-century commercial cultivation. Wild lowbush blueberries (V. angustifolium) are smaller, more intensely flavored, and grow naturally on glacier-scrubbed barren land in Maine, New Brunswick, and Quebec. Maine’s wild blueberry barrens are commercially harvested by mechanical rakes once a year.

Anthocyanins

The blue-purple color comes from anthocyanins — water-soluble flavonoid pigments that are powerful antioxidants in lab studies. The same compounds give red cabbage, purple grapes, and beets their colors. Whether eating berries translates these laboratory effects into measurable human health outcomes is still debated, but blueberries score consistently well on antioxidant index measurements.

A North American native

Indigenous peoples in North America gathered, dried, and traded wild blueberries for thousands of years before European contact. Highbush cultivation began only in the 1910s, when Elizabeth Coleman White and Frederick Coville domesticated wild plants on her family’s New Jersey cranberry farm. Until then, all blueberries were wild-foraged.