We had three very healthy buddleia in our garden, but they had been planted by previous owners on a slanted banking that was too shallow.
So they were leaning very badly last year, and I had to remove two of them before they fell over.
The last one has died now, I think because the roots couldn't get deep enough and it became unstable. ... I'll need to remove that one also.
Shame, because they didn't have attract the butterflies.