Oh, the timeless and beautiful hydrangea…very few plant species have had so much advice given out to ensure their success as the hydrangea. And unfortunately, much of that advice is incorrect. The variety of hydrangea that most people are aware of is the type that blooms with stunning pinks, blues and purples in the spring. This variety hails from the Macrophylla family of hydrangeas, of which “Endless Summer’ is a member. Macrophylla hydrangeas bloom on “old wood”. What does this mean?