Clearly people who work in nurseries do more than move plants back and forth 5 feet away, but this is an interesting step in the right direction. When I worked in a nursery in high school I had 2 primary tasks a) keep the plants watered b) help customers load their cars with big items. I've read about projects that use water sensors to enable plants to request water individually as they get dry. Adding a water tank and a sprayer to these little robots might be an interesting addition if it isn't cost prohibitive. I look forward to seeing more applications of technology in agriculture.