What is one of the main advantages of using single-trunk trees for street tree planting?

Using single-trunk trees for street tree planting offers numerous advantages, with one of the main benefits being their reduced risk of structural failure. Single-trunk trees typically exhibit a more stable growth form compared to multi-stemmed trees. With one dominant trunk, the distribution of weight is generally more balanced, leading to an overall stronger structure. This is particularly important in urban environments where trees are subjected to various stresses, such as wind, ice accumulation, or physical damage from vehicles or pedestrians.

Furthermore, the single trunk structure can minimize the chances of limb breakage or the tree splitting, which are more common in trees with multiple trunks that may compete for dominance. By selecting single-trunk varieties, arborists can foster a safer urban landscape, reducing the likelihood of accidents or damage caused by fallen branches or trees.

While factors such as shade provision, pruning requirements, and aesthetics also play a role in tree selection, the paramount concern for street trees is their structural integrity and the safety implications for surrounding infrastructure and people. Hence, reduced risk of structural failure is a critical advantage in urban tree planting strategies.