I don't know why the breeders do this - Wedding Gown is a marketing name but 'Dancing Snow' is the registered (and patented) cultivar name. Why two separate names are necessary is beyond me. I guess you could look under Ball Horticulture's Double Delight series for something similar but the flowering style of this hydrangea is somewhat unique.

You might want to try mail order if hard to locate in your area.

Last year I found a bunch of these at Home Depot. I wasn't looking for a small hydrangea but I bought one. liked it so much I went back and bought 7!! I'm going to buy more this year also. They were a blooming machine, had fantastic fall color and they all survived what was one of the worst winters in CT in a very long time.
And to add: I live in deer infested woods. I used Liquid Fence and so far they have been ignored.
I honestly adore these hydrangeas.

Wedding Gown AKA Dancing Snow. Home Depot!! i am practically running out the door!

Please and thank you,

Mariposa

Yes the red fall color phase can be astounding on this otherwise considered a white flowered beauty!

You could call it "Burgandy and Ice", "White Surprize", or ''Snow White Becomes Evil Queen"?

Spring / Summer Phase

Fall Phase