This true dwarf oakleaf hydrangea produces incredible 9″ long clusters of flowers in early summer in full sun or partial shade. These oakleaf hydrangea bushes thrive in heat, drought, or poor soil, as long as it’s well-drained. Ruby slipper hydrangea blossoms start out white and gradually turn pink then rose red as summer progresses. The color show continues into fall when the foliage turns burgundy. This bushy shrub grows only 3-4′ tall and 4-5′ wide, and its large decorative leaves can withstand summer sun, strong wind, and heavy rain. Hydrangea quercifolia ‘Ruby Slippers’