These gardens in Israel are holy to the Baha'i religion, whose people revere order and perfection. Four teams of landscapers are constantly present--I know this because I asked. Over 30 specific types of fertilizer are used (seriously) and it takes 8 days to prune one of their "perfectly" shaped trees. It's stunning! Though when I was there I kept wondering when the henchmen were going to appear and start painting the roses red.
(above) I took this picture!