Blueberry trees are overgrown with shrubs, with significant differences in size and shape, which are often controlled at about 3 meters in cultivation; The tall blueberry trees are 1-3 meters high; Half-tall blueberry trees are 2-1 cm high; The bush blueberry tree is 3-5 cm high; The height of the rabbit eye blueberry tree can reach 1 meters, the shorter red bean blueberry tree is 5-25 cm, and the shortest cranberry grows prostrate, and the tree height is only 5-15 cm.