Hey Archon, yea im 99% sure it has to be those rodents. The top will still be green but drooping, so that would tell mw even if the plant died some remnance of the root should still be there even if it died naturally. I remember one time one of the largest wild plants i had maybe stood 20in tall. I walked by and admired it every time i went to check on my wild sim. Then one day it wasnt 20 in tall, maybe only 6 in tall, and still green. The actual stem of the plant had been pulled down in the ground. So i dug to see what happened with the root. No root with a little tunnel, hopefully the rodents will get too fat pretty soon and get stuck in those tunnels.