We planted a hedge

At my daughters place, a cypress hedge. I read about them they can grow to the height of a ten story building in 200 years so they have to be trimmed. Tomorrow we will plant a hibiscus hedge it has white single flowers it won't get so big. I was reading about hedge wars in England people get angry over untrimmed hedges. My daughter and her partner aren't much into gardening but their yard is really open to the street so they needed a barrier of some kind. It looks really cute I hope no one pulls them up.