ISA Certified Arborist Practice Exam 2025 - Free ISA Arborist Practice Questions and Study Guide

Watering a tree after placement is essential for several reasons. Once a tree is planted, it faces transplant shock as it adjusts to its new environment. Watering helps to settle the soil around the roots, eliminating air pockets that can hinder root contact with the soil. Additionally, proper hydration supports the physiological functions of the plant as it begins to establish itself in its new location.

Choosing the right timing and methodology for tree planting is crucial to promote optimal growth and health. Other statements, such as the need to have a hole deeper than the root system or removing all soil from the roots, can negatively impact the tree's establishment. Additionally, planting only in winter is too restrictive and not suitable for all climates and tree species, as many trees can successfully be planted in spring or fall, depending on local conditions and the specific species involved.