The Powderblue Blueberry gets its name from the powder blue blush that the berries gain upon ripening. It is actually one of the toughest blueberry plants with a late ripening season. The Powderblue blueberry bush has an upright growing habit that can reach a height and width of 8-12 feet. Blooms form in late spring with a harvest in late summer. The blueberries are medium sized, firm, and packed with juicy, sweet flavor.