I have several Gaura (I think the common name is Whirling Butterflies) that I enjoy all summer long. They reseeded lightly in the garden, including quite a few in the Hell Strip. The Hell Strip is a bit too narrow to support the Gaura and I decided to try and move them. Since they reseeded many of these were close to other plants I wanted to keep so I knew I'd be challenged to get a big enough root ball but I tried.
Sure enough almost immediately after i transplanted them the top growth died off on all of them.
Damn.
I decided to leave them where they were so any seeds would drop into the area I wanted new plants.
Good thing I was
I just hope they survive the New England Winter.