Conditions of concern may be defined as tree issues that the client and arborist perceive as unacceptable. In my experience, they usually fall into one or more of three categories. Typically, it is about structure, clearance and appearance. (Photo [...]

It’s tough out there for trees, especially when they are trying to survive in the “un-natural” urban forests where we live. Trees tend to grow well on more natural, undisturbed sites like arboreal areas, but there is nothing natural [...]

The general identification terms of sapwood and heartwood are used in many aspects of the plant sciences, especially in arboriculture. These terms are used loosely by many practitioners to identify the outer portion of a branch or stem and the [...]

Trees in our urban forest may present an unacceptable level of risk for the tree owner or manager. This is where an arborist trained in tree-risk assessment can identify the issues and provide mitigation options to reduce the risk [...]

The primary management focus for sustainable long-lived trees is to promote healthy growth that supports vigorous plant processes with adequate oxygen, water, soil health and nutrition in a suitable soil volume. Often this is a seemingly impossible task to [...]