Quick Fire Hydrangea
Hydrangea paniculata 'Quick Fire'

Foliage: Green
Fall Foliage: Insignificant
Fruit: N/A
Habit/Form: Vertical
​Uses: Grouping, mixed shrub border, Accent

Zone Hardiness: 4 -8 
Plant Height: 6 - 8 ft
Plant Width: 6 -8 ft 
Light: Sun/part sun
​Growth Rate: Medium

Quick Fire® Hydrangea is one of the first hydrangeas to bloom. It It is an upright, vigorous selection that features bold conical white flowers with pink overtones at the ends of the branches from early summer to late fall. It is often grafted on a single trunk. The flowers are excellent for cutting. It grows on new growth and it will require occasional maintenance and upkeep. it is best if you prune it in late winter or early spring. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and is a great pollinator. It often goes by the name Hydrangea paniculata 'Bulk'.
For your information....
If the leaves of your hydrangea turn yellow during the summer, it is likely to a lack of chlorophyll production caused by a shortage of iron.