The root system of pine trees is relatively developed, and the root system can be deeply rooted in the cracks of stones, which is more stable in the process of bouldering. The trunk of the pine tree is soft and elastic, and it is easier to adapt to the shape of the stone, so that the pine tree can better hold the stone.
In many gardens and landscape designs, pine trees are often chosen for bouldering to create a natural and unique landscape effect.