I just had my first normal sim turn into a plant person, and it's fun.

He was spraying a buggy plant, and then a cloud of spray enveloped him, and I thought, "Oh, crap, he's poisoned himself."  But no.  After the game froze for quite awhile (must be a complicated transition for the poor guys :-)), he turned into a plant sim.

Plant sims have three needs:  Sunlight, Water, and Love.  No more toilets, comfy sofas or TV!  One of his options when taking care of plants now is "talk to plant."  And he hunkers down beside a plant and has a conversation.  He seems to talk about normal sim interests, but ones that are especially relevant to plants: weather, environment, and animals.  At one point, he was talking about ladybugs and made buzzing sounds when talking. :-)  I had him talk to a sickly plant, and he made it healthy again, just by talking to it.  AND talking to the plant satisfied his own "love" need.  Cool!

When his water need got low, I tried having him drink some water, but that only raised it a little bit.  But taking a shower -- bam!  Full up! :-)

Well, this happened five minutes ago, so I don't have a lot of details yet, but I thought it was fun and wanted to encourage people to try it at least once.

Happy simming!