Popular panicle varieties include 'Limelight,' 'Pinky Winky,' and 'Fire Light ... a 'Limelight' panicle hydrangea is hardy in USDA zones 3 to 9, while a 'Nikko Blue' bigleaf hydrangea is hardy ...

The plants, sometimes called peegee or hardy hydrangeas ... color when they emerge and transform into a vivid red hue; Pinky Winky hydrangea is known for its large white panicles that transition ...