I know that you can get a plant sim by making them spray lots of trees and stuff but I was wondoring if there was a faster way? Please help me.

You can use this one if ya like. I use this all the time. It's so easy really. You can make your sim into other creatures, too.

Sims turn into PlantSims fairly easily. If you want to do it without cheats, try planting stuff in the summer (bugs occur more often) and have your sim spray them everytime they get bugs. He should have a chance of turning into a PlantSim after x number of sprays.

Even after you cure him of PlantSimism, the spray count doesn't reset, so he'll keep that chance of becoming a PlantSim. I think it's 25% or something high like that.

Otherwise, you can get the lot debugger from moreawesomethanyou.com, which gives you options for turning your sims into PlantSims, Vampires, Werewolves etc.

You can hack (InSim), or boolProp it. How? Get an orchard tree, shift-click, and pick infest. Spray it, repeat.

There is also a few potions at Modthesims2 that I have found that will make you instantly a plantsim as well. I have one that I really like that I am using right now.