The hydrangeas are very beautiful. I planted a row on the north side of my house. But I find that most must bloom on old wood, and the old wood gets killed in winter, so thus I have very few blooms some years. As far as I know, Nikko Blue blooms on old wood, but what about the others? I would love to find good mophead varieties like yours in the photo that bloom on "new" wood. I've been going to search the database but haven't got around to it.
