This is a re-post of my comment on your LD entry page:
Very cool plant simulation! At first I had the slider bar to the far right to speed things up and it didn't seem to be any faster. Then I put it on the far left and it started growing like kudzu. 😀
I like how if you don't feed/water your plant it starts to die.... then if you water/feed it again then it starts growing again. It also seems like the branches grow in a different direction each time. I would be interested in hearing about what algorithm you used to determine the branch angles.