Blueberry plants come in a variety of sizes -- from knee-high to 15 feet tall. Select the bush type that works best for your needs and for your planting area.
Mature rabbiteye blueberry plants may grow 12 to 15 high and 8 to 10 feet wide. Smaller varieties such as the highbush grow to be about 3 to 6 feet tall and 4 feet wide. Shiny blueberry plants only grow up to knee-height, according to an article on Floridata's website.
Remove all flowers from the blueberry bush during the first growing season before the fruit sets. This encourages deep vegetative growth and helps to establish the plant for future growth. Plant rabbiteye bushes no closer than 6 feet apart, unless you want a more hedge-like bush.