The one we bought has a maximum height of 7 to 8 ft which is perfect and the reason we were looking for that one or one of 2 others that have max heights of 6 to 8 ft. You need to pick the right one for where you want it. No power lines to worry about where we're planting it. The one in the middle of the yard needs pruned pretty badly because it's been left with no pruning at all and has tons of branches crossing each other and dead and damaged ones that need taken off. That will be done in the fall and hopefully next year will have a better idea which one it is. Because of it's issues it never bloomed so we do not know which color flowers it has.
We do have two tiny ones that will eventually be planted that are currently in containers. Those only get to be 2 to 3 ft tall for one and up to 4 ft tall for the other one.