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Wild Blueberry

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Vaccinium angustifolium

Maine wild blueberries are small, sweet-tart berries with concentrated flavor. Their lowbush plants spread naturally across barrens and fields.1 The commercial crop is not a plantation of identical shrubs: lowbush plants occupy glacial outwash plains and rocky barrens, and a field can contain roughly 1,500 genetically distinct plants in a patchwork of clones.2

Lowbush blueberry is native to northern New England and Atlantic Canada; Maine’s crop grows in naturally occurring fields rather than conventional planted rows.1

Wabanaki people managed and harvested wild blueberry fields at scale, including through burn-pruning. During the Civil War, Maine blueberries were sent by sea to the Union Army.2 The crop still follows that two-year logic: after harvest, fields are mowed or burned so plants spend one year rebuilding stems and buds, then bloom and fruit the next year. Farmers divide fields between prune and crop years to harvest annually.2

A wild blueberry field is not one uniform planting. The plants spread underground into patches called clones, and each patch is genetically different; a single field can hold hundreds or thousands of them. That mosaic is one reason berries from the same field can differ in color, size, ripening time, and flavor.3

Blueberry skin holds much of the fruit’s anthocyanin color, while spicy terpenes contribute to its aroma. Those pigments are sensitive to alkalinity, which is why baking soda can push blueberries in muffins toward an unexpected green.4 Maine’s berries are also notably a processing crop: recent production statistics show the overwhelming majority going frozen or otherwise processed, while only a small fraction reaches the fresh market.5 That is not a sign of inferior fruit; the small berries, thin skins, field variability, and short harvest window make rapid cooling and freezing a practical way to preserve the field’s flavor.6

Footnotes

  1. University of Maine Cooperative Extension, “Maine’s Native Berry,” accessed July 17, 2026. ↩ ↩2

  2. University of Maine Cooperative Extension, “About the Maine Wild Blueberry,” accessed July 17, 2026. ↩ ↩2 ↩3

  3. University of Maine Cooperative Extension, “Organic Wild Blueberry Production,” accessed July 17, 2026. ↩

  4. Harold McGee, On Food and Cooking: The Science and Lore of the Kitchen, rev. ed. (Scribner, 2004), PDF p. 376. ↩

  5. University of Maine Cooperative Extension, “Maine Wild Blueberry Production Statistics,” updated February 2026. ↩

  6. University of Maine Cooperative Extension, “Post Harvest Handling of Wild Blueberry,” revised February 2023. ↩

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