So you may already know that there’s a new challenge that rewards you with the ability to become a PlantSim! An occult in a free update, wow! Here’s an overview:
Unfortunately, most likely since they are being given out for free, they’re very limited compared to their counterparts from Sims 2 and 3. No genetics (so no toddler sprouts), they can only last up to 5 sim days, and both males and females are stuck with the same base game hair. No ability to create a PlantSim in Create A Sim either. However if you use mods, you’re in luck! I found some that can solve all of those problems (save for genetics, I think that’ll be up to Maxis):