Can be found all around Tibia. There are many Blueberry bushes in Greenshore, east from the wheat field. The Dryad Gardens also contain a lot of bushes.
They are the source of the blueberries. 'Use' the bush first, then take the three remaining blueberries, however sometimes other players "use" the Blueberry Bush and don't take them with themselves. Thus, there can be up to six blueberries in a bush. It takes one hour for the blueberry bush to regenerate.