Panicle hydrangea (Hydrangea paniculata) has distinctive cone-shaped flowers and smaller, thinner leaves than bigleaf hydrangea. The flowers sometimes change color as they age and bloom from the ...

The original Endless Summer hydrangea -- a blue mop-head flowering variety known for its long blooming period, from early summer through fall -- was introduced in 2004 and was an immediate ...

Mop head hydrangeas are prone to powdery mildew, leaf spot and bacterial wilt. It is important for plants with leaf spot to remove all these diseased leaves from the plant and the ground ...

Hydrangeas are popular, but understandably confusing! There are about 25 species, though only five are primarily grown in the U.S. There are literally thousands of cultivars. Some species are ...