Incrediball

I got one but smaller (first year)

year)

I would expect Incrediball blooms to be larger than the ones in your picture. If it has some type of support mechanism, I would lean towards Annabelle... although I have read of people saying Incrediball still flops. The shrubs are gorgeous anyways!

I'd put all my money on Annabelle. It is an excellent plant. Because I prune back to ab0ut 2 feet in spring, they never flop and I never stake. This year I didn't get around to pruning until June, at the earliest. They are completely covered in blooms like you see in your photo.

I don't think think they are the most "interesting" hydrangea because they don't change color and the flowers are "just" balls but for effect, ease of culture and consistent performance they cant' be beat.

Also, we are in moderate
to severe drought here. I have not watered them a single time. Look for them on sale in the fall. Thats the best time to plant and you'll be able to find big specimens for good discount. OTOH, if you see some now on sale, I'd purchase those. They may run out by September/

The Anabelles I see look exactly like this.