Yay!
How did you promote the idea?
I have a problem with clients deciding that the plants must be sheared within an inch of their lives, thus reducing their attractiveness to birds or even ability to reproduce.
And anything that thrives seems to get an automatic label of too aggressive... And the entire patch gets ripped out in favor of plants that don't flourish in that spot....
Too many people seem to be unable to get out of the way.... And listen to what the garden wants...