What do you do when the stem starts to crowd the hole?
That is the signal that the tree does not need the Groasis Waterboxx® plant cocoon anymore. So you lift the Groasis Waterboxx® plant cocoon off the tree and use it to plant the next tree.
You don't need to remove the Growboxx® plant cocoon from the tree. The box is biodegradable so nature will break down the box.