A blueberry is not just a blueberry.
Blueberries (Vaccinum corymbosum), not to be confused with huckleberries, (Vaccinum myrtillus) originally come from North America, but are now cultivated throughout Western Europe.
The blueberries are larger and grow in bunches, whereas huckleberries are small and grow individually on the bush. Another characteristic difference is the flesh. huckleberries have red flesh, while blueberries have white flesh.
Many growers today are still growing blueberry varieties from decades ago – some are more than 30 years old. Crosses with, among others, the Lowbush blueberry (V. angustifolium) and the Rabbiteye blueberry (V. virgatum) have resulted in more than 200 different cultivars worldwide. Nowadays we know the low chill varieties, bred for heat tolerance and low winter chilling and high chill varieties need cooler winters to thrive. Every year a number of breeds are added worldwide.