In my zone 5 garden Raspberry Swirl probably doesn't get to the registered height (but almost). I love, love, love, this little bloom. Love the stripe and the light edge. So very pretty. I crossed it with ???? unknown. Here is a picture of Raspberry Swirl and its seedling. Looking forward to seeing the seedling this year to see if it gets taller. As I recall the seedling was even shorter than Raspberry Swirl.