Contrary to popular belief, she has more right to do as she wishes with her property than her neighbors have a "right" to high property values.
Everyone is under the impression that an investment must show a return or they are being "wronged" somehow. The truth is, people have no right to high property values and have no place telling their neighbors how to landscape.
The neighboring town here even has guidelines for your garbage cans! If you put out one thy don't like, the trash guy's just throw it in the truck and off it goes. My buddy lost several before he found out about the rule.
Busy body-ism should be punishable by death, imo.
I would leave her alone! - I don't know why people are so ticked off about her shrubbery.