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 ...
Oak leaf hydrangeas are another type that should not be pruned in spring. You can dead head or remove the faded blooms on your hydrangeas, cutting back to a pair of healthy buds. Or you can just ...