👻 Phantom Hydrangeas!!! The Phantom hydrangea belongs in the Hydrangea “paniculata” family and is known for its large, cone-shaped flower clusters that bloom in summer and turn pink as they age. The name “phantom” comes from the fact that the blooms of this hydrangea are often so large and dense that they can appear to float above the plant like a ghost! Mine have always grown larger than my head and even more densely petal-ed than my limelights. The flowers on this plant measured 15 inches tal