4-5'x4-5', Zone 5. Darkish foliage. Blooms on old wood as far as I can tell. Not incredibly common but is grown by several growers and is available at select nurseries.

Here's a pre-bloom/foliage pic of with one of those "Northern Grown" plant tags (my Lady In Red had a similar tag):

http://allthingsplants.com/pics/2013-06-23/Shannon/ab6439.jpg

And here's a pic of the bloom from the Cape Cod Hydrangea Society:

http://www.thecapecodhydrangeasociety.org/images/photos/joan_harrison-purple_majesty.jpg

I love that color. Thanks for the name-maybe now I will be able to find it!

Six is better than nothing!

Thanks everyone for your help!

@my3fatcats...Thanks for the pictures. This is exactly how mine looks right now. Blooms have more of a pinkish hint than purple though, but still so beautiful. I will try and post a picture later. Where do you buy your Hydrangeas from? Do you have a nursery you recommend?

I live in Zone 6, North central CT too, in the border of Hartford and New Haven counties :-) When fall rolls in I may ask you for some tips on over-wintering my Hydrangeas, as I am new to gardening.

Thanks!

General rule is the further inland you are from the east coast, the more protection you need. But if the NE snow is anything like it was last time, I'd imagine that taking no action might be "better" than trying to cover the plants.

Thank you!