The Seven Most Difficult Tree Species to Manage According to Tree Care Experts By Ben Culbreth Across the industry, tree care professionals tend to agree that a handful of species rise above the rest in terms of difficulty. 1 Not all trees are equal — at least not when it comes to managing them. Some species demand far more time, attention, and expertise than others, and many arborists develop strong opinions about which ones push their skills to the limit. A tree may be aestheti- cally impressive or ecologically valuable, but from the standpoint of maintenance, risk mitigation, and long- term health, certain species consistently prove more difficult to work with. Of course, it mostly depends on how the tree interacts with its surrounding environment. Some trees exhibit erratic or aggressive growth patterns that bring them too close to structures, utilities, or pedestrian areas. Others have expansive, shallow, or adventitious root systems capable of heaving sidewalks, invading foun- dations, or disrupting landscaping. Many species also come with biological vulnerabili- ties — susceptibility to invasive insects, fungal patho- gens, drought stress, or storm damage — that require frequent monitoring and intervention. Even seeming- ly routine tasks, such as pruning or cabling, become more complex when a species is known for brittle wood, rapid decay, or awkward branch architecture.
Across the industry, tree care professionals tend to agree that a handful of species rise above the rest in terms of difficulty. Whether due to structural issues, site conflicts, or persistent health challenges, these seven trees are widely regarded as some of the most troublesome to manage. Here is why they earn that reputation. 1. BRADFORD PEAR If there’s one species just about everyone in the tree care industry has on their problematic list, Bradford pear is it. An invasive species, Bradford pears are known for their uniform, pyramidal to oval crown when young. It’s a popular tree, seen in streetscapes and yards around the country. But it has its challenges (besides the odor when it blooms). They are oen praised for their symmetrical appear- ance in landscapes, but this symmetry is short-lived. As the tree matures, the narrow branch angles and dense branching create significant structural weak- nesses that lead to frequent splitting.
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