People usually plant trees by making round holes then putting the tree inside, together with fertilizers and compost. However, there are some reasons why we shouldn’t plant trees in a round hole.
When a tree is planted in a round hole, it will thrive at first, but when it has already reached the poorer and compact ground within the perimeter of the holes, it will struggle to survive and will eventually develop a circular root system that may choke each other.
On the other hand, planting trees in a square hole will drastically improve its survival. This is because the roots won’t develop a circular root system. The 90 degree angle of a square hole will allow the roots to spread out of the planting hole and colonize the surrounding native soil.
This planting method not only improves the survival of the plant, but also allows for faster development growth that makes plants more resilient to environmental challenges like drought.
It is also important to fill the hole after planting the tree using the same soil that was dug out. This is to avoid the ‘container effect’- the behavior of the tree as if it is inside a container. It is also recommended to trim any twisted roots before planting the sapling. Root trimming contributes to the production of compound materials that stimulates the growth of the plant.