My Incrediball is about 5 feet tall every year and has a round shape. Limelight gets taller than that and more upright like Rose of Sharon. I can't tell how high up your rails are so hopefully that helps you narrow it down. Incrediball can be found online still but rarely in person. I like it better than Annabelle myself.
Here's a source for Incrediball in MI.
https://romencegardens.com/hyd...
