Photo credit: MG Judy Weaver

The oakleaf hydrangea is Alabama’s state wildflower.  Native to the Southeastern USA, the deciduous shrub was discovered and named by botanist John Bartram and his son William while on a plant expedition in Georgia in the late 1700s.  

These large shrubs can reach 6 to 10 feet tall with an even wider spread. The oakleaf is known for its conical flowers that begin as a soft green and turn to creamy white, eventually changing to light pink or purple. Its large coarse leaves are oak-shaped. The oakleaf thrives in both full sun to part shade and well-drained soil. Several cultivars are available that offer superior flowers. 

Oakleaf hydrangeas bloom on old wood, so pruning should take place shortly after flowering because next year’s buds begin to develop in August. Cutting one-quarter to one-half of the old wood stem improves plant vigor, overall shape and bloom volume.