The Nikko Blue Hydrangea is a stunning fast-growing shrub with large, rounded flower clusters that bloom in a beautiful sky blue color all summer long. This versatile plant can be used as a colorful hedge, a landscape plant, or as a lovely addition to a flower bed. Nikko Blue hydrangeas typically reach a mature height and width of 4 to 6 feet, forming a mounded shrub shape in the garden. These hydrangeas thrive in partial sun conditions and prefer moist, well-drained soils, making them a low-maintenance and attractive addition to any garden. (USDA Zones 5-9)