They are: H. quercifolia (oakleaf hydrangea) and, H. arborescens (smooth or wild hydrangea). Both oakleaf and smooth hydrangeas evolved in and along the woodland landscape. They prefer ...

Annabelle is a cultivar of smooth hydrangea (Hydrangea arborescens), a species native ... hydrangea recorded was found growing in the wild, it had mutated to express genes for showier flowers ...