"Nature is Supernaturally Efficient" Tell me about it. The way plants grow is very interesting. One time I saw this video, this guy was growing plants indoors and he was playing around with the light. For 2 days he would put the light to the left side of the plants, then the plants would grow to the left, then he would change it and put is to the right side and the plants would follow the light. That's proof that plants are smarter than you think.