ISA Certified Arborist Practice Exam

Watering young trees during dry spells is crucial for their establishment and overall health. They require consistent moisture to develop strong root systems that can support their growth. The correct approach is weekly watering, ensuring that the water penetrates deeply into the root zone.

Deep soaking allows water to reach the roots more effectively, encouraging them to grow deeper into the soil where they can access additional nutrients and moisture. This method also helps to promote a healthier structure by reducing the chance of surface roots that can lead to problems as the tree matures.

In contrast, watering every other day could lead to oversaturation, which may harm the roots due to lack of oxygen and increase the risk of disease. Twice a week may also be too frequent, resulting in shallow root growth. Monthly watering is insufficient during dry spells, as young trees need regular moisture to support their rapid growth and establishment. Ensuring a consistent and appropriate watering schedule fosters stronger, more resilient trees that are better equipped to handle environmental stresses as they mature.