Oakleaf hydrangeas (Hydrangea quercifolia) have leaves that look like they belong on red oak trees and flowers that open ...
Two hydrangea species are considered native for U.S. East Coast and suitable for U.S.D.A Hardiness Zones 5-7. They are: H. quercifolia (oakleaf hydrangea) and, H. arborescens (smooth or wild hydrangea ...