How does pruning a tree during transplanting affect its growth?

Pruning a tree during transplanting is a common practice aimed at managing the balance between the root system and the canopy. When a tree is transplanted, it often experiences stress due to root disturbance. Pruning the tree helps to reduce the canopy size, thus decreasing the overall demand for water and nutrients from the roots.

By cutting back the top portion of the tree, the arborist can prepare the tree for its new environment, promoting a healthier establishment. However, the pruning does not actually increase root growth; it can lead to a temporary decrease in root growth because the tree will need time to recover and establish itself in the new location. Pruned trees may initially direct their energy to healing the cut areas rather than expanding the root system immediately after transplanting. Over time, with proper care and conditions, the root system can develop, allowing for healthy growth, but immediately post-transplant, the emphasis is on stabilization rather than root proliferation.

Therefore, pruning during transplantation can result in a decrease in root growth as the tree adjusts and reallocates its resources.