A cute little idea that looks really nice. I feel like it could be a little harder, maybe add some floor that falls when you move over it too much. I wanted to see the end so I just stood around and did nothing for a while, and the plants were really merciful around that last pillar:
I also noticed that when you cut a lot of grass at the same time it basically kills your ears :D
Either way, this is a cool idea with a lot of potential. Really well done!