User blog comment:Mr.Robbo/Human Chauvinism 5/@comment-4364108-20140106235932/@comment-4799917-20140107020226

The main problem with plant sapience is that there simply isn't enough energy generated by photosynthesis to allow for a sapient mind, or even motion for that matter.

Also, you never adressed the point on how a plant would have the pressure to become sapient.