system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: how does grass(and plants in general) come back year after year after dying? And also, where does grass seed come from?
gpt
I live in “the grass seed capitol of the world!”  (Oregon) and there are hundreds of thousands of acres devoted to growing grass.  It’s harvested for seed and hay.  

But the grass doesn’t “die” it just goes dormant.