You came back for more?
Welcome to the dark side
of the camp fire. Grab a beer and have a sit.
Chickens scratch. If they don't eat a plant outright, they tend to scratch the roots out.
Lay logs, sticks, branches down and add mulch to the top of it. The heavy stuff will protect the roots. Pile up the mulch and you and the chickens will gets lots of exercise. Rinse and repeat. Add logs to the top to keep mulch in when you get tired.
Some people use chicken wire. It works.
@WhatTheDuckingDuck now I want brownies and it's too hot to bake. Hold the pixies, I've got to adult. I blame you. On the bright side, I've got Blue Bell.