Happy New Year irishdescended. I have not tried to root hydrangeas but I would think that doing it now might require paying special attention to moisture levels inside the home. Winter can be very dry and problematic for rooted hydrangeas. For more info, check this article on Rooting Hydrangeas and Good Luck!

Luis

I'd just leave it for now. No need to repot, then have to do it again later in a few months.

If it rooted like that, it must obviously be happy where it is.

I'd just wait until it's time to play outside and tranplant it with as much of the original potting soil and roots intact as possible.

It's funny how with the newer hybrids one of the by products of the breeding programs, is developing plants that root well and are less fussy. I've had Lady in Red's root in water vases too. They also branch root outside very easily.