How often do you play with PlantSims?

I thought the plant sims were a cute addition, but there are a couple of problems with them. I was planning to have a plant sim in my rotation but she wouldn't be plant sim when I'm playing my other households. So she would have to be only part time plant sim. It lead to me playing her as a normal sim instead. Another problem is the hair. I like that it changes from green to grey but the haircut is so boring. If they're using a regular sim hair then why not have all the haircuts available?