They are prone to dying suddenly, mysteriously, so having just 1 can be disappointing. I used to think it was an edge-of-hardiness thing in OH, but they do it here near FL border too.
Since they propagate *so* easily, it shouldn't be a major concern. Get a few going, then if 1 dies, it doesn't mean you have none. Putting a nice pile of leaves over after the leaves fall off for winter can help a lot too.
I strongly recommend finding a sterile cultivar. The one I have has never produced a seedling, and has been moved via cuttings around central OH a few times, then to AL, in my yard & my Mom's yard. About 20 yrs. It's something I do every summer, stick cuttings of BB wherever it might be nice to have another one.
