What if there are no rocks to cover the ground?
When you lift off the Groasis Waterboxx® plant cocoon the tree, cover the ground. The best way to do that is with stones, but any other material will also work. If there are no stones, use straw, weeds, grass or palm leaves. If you do not have this, you can think of mulch, cardboard or clothes. If that is not possible, you can cover the ground with loose soil.