We are the Kennedys but not those Kennedys
I bought Arp a couple of years ago. It winter killed the first year :-(
I figured it had to be too good to be true.
I did have one that lived for many years, but it was planted right up close to the house. That might have been just enough warmer that it didn't winter kill (I killed it by overpruning it one year). The one that winter killed was out in the garden.