Small but mighty, this dwarf hydrangea with lime-colored flowers blooms from summer to fall.

* Botanical name:Hydrangea paniculata 'Jane' * What it is: A long-blooming shrub that gets large, 6-inch-wide, cone-shaped flower clusters of lime-white from early to late summer. Flowers mature pink.

A single hydrangea can make a huge pop of color in the landscape. So imagine what a whole hedge of hydrangeas looks like. Very little else can equal the sheer drama of the eruption of flowers and ...