I'll be blunt, the plant sims we have in sims 4 are a complete joke. Granted, they were free, so I don't expect too much. But as it stands, Plant sims are just Green skinned sims that need water/sun...
I prefer plant sims over werewolves,zombies and aliens so I wish they would update them before adding new occults. They're very interesting life stage imo, and I could finally make a true Poison Ivy inspired sim.