Why is it important to limit the amount of grade change in landscape projects?

Limiting the amount of grade change in landscape projects is primarily important to prevent damage to tree roots that can occur due to soil removal. When the soil is altered significantly, particularly around established trees, it can expose or disrupt root systems, leading to a variety of negative outcomes, including reduced stability, increased susceptibility to disease, and compromised nutrient uptake. Healthy tree roots are critical for the overall vigor of the trees, and protecting them helps maintain the ecosystem balance within the landscape.

Although other factors such as aesthetic value, drainage capabilities, and insect infestations are also relevant considerations in landscape projects, they do not directly address the critical relationship between grade change and tree health as effectively as the concern for root damage does. Therefore, recognizing that root systems are sensitive to changes in soil grade is essential for ensuring the longevity and health of the plants in the landscape.