What are the considerations for placing a water-absorbing stone bonsai?

Water-absorbing stone is a kind of stone with a loose texture but extremely strong water absorption capacity. It can not only grow moss, but is also very easy to process, making it the main material for water-absorbing stone bonsai. A finished water-absorbing stone bonsai is not only elegant in appearance, but can also be used to plant flowers, grasses, and plants on this kind of stone.