3 months ago I had a massive, overgrown 7 foot rosemary bush in my backyard drastically cut down to about 3.5 feet. It was so tall it was crushing itself under

3 months ago I had a massive, overgrown 7 foot rosemary bush in my backyard drastically cut down to about 3.5 feet. It was so tall it was crushing itself under its own weight. One summer later and it’s back to around 5 feet. Also in SoCal, it gets watered maybe once a month, if that (whenever I remember). I _wish_ I could stop it.