Tree Inventories

The objective of a tree inventory and landscape development plan is to effectively and efficiently provide proactive plant care on a timely basis, within a given budget.

Landscape Assessment Process

Step One: Development of the Tree Inventory / Health Analysis and Indication of Maintenance Needs

The assessment process begins with a full inventory and inspection of all trees on the property. The physical presence, species, numbers, size, and the current health and structure of these plants, along with site characteristics, need to be verified, photographed and cataloged in order to start their management. This includes all healthy plants as well as those with health issues, along with any required comments relating to a specific health issue.

All of the information that is gathered during the inventory process is documented within our urban forestry software.

Tree Inventories

Along with the written assessment report, we will provide you with a URL that allows you to access this map-based inventory software. From here you will be able to check in on the status of individual trees. This gives you the ability to track the continual monitoring of tree health, as well as individualized work history in real time. This platform also provides us with increased efficiency where all parties involved can accurately identify and have access to up-to-date information on any trees that may need to be discussed. We have found that the ability for all parties involved to view this platform allows for decreased back-and-forth emailing and site visitations when discussing an issue in question.

Step Two: Creation of an Assessment Report and Prioritization of Areas of Need

You will then receive a written report detailing the findings of the assessment. Through the information gathered during the inventory process, we are able to lay out all maintenance needs and prioritize their importance.

For example, some tree/plant health issues may need to be identified as “immediate” and scheduled accordingly, while other tree/plant maintenance events may be scheduled for later in the season, the year following or beyond.

Step 3:  Calendarization of Work Needed Based on Budget

Following the inventory and identification of tree/plant work, a discussion regarding the annual budget for the care of the trees and plants needs to take place. This discussion will form the foundation for future tree and plant care planning.

Once the budget has been set for the current season and a prediction of future season’s allotted budget has been made, then the resources can be put in place to perform the actual work of tree and plant maintenance. This is the point where we would now consider the true goal for the landscape and incorporate its development through new plantings and restocking.

Tracking of Work History and Ongoing Monitoring

All work completed on each individual tree would be recorded and updated in the inventory master file.

Two additional landscape assessments will be performed per season to monitor current tree/plant health as well as any newly occurring health issues. The costs for these assessments would be incorporated within the plan itself. Any new information would then be updated within the inventory master file.

Tree Inventory and Landscape Development Plans

The Value in a Detailed and Continuously Updated Tree Inventory

A recorded inventory and detailed inspection of all landscape assets will broaden the scope of knowledge surrounding the trees/plants. This will enable the process to consider all plantings as a whole community and assess their interrelation.  A quick undocumented inspection would capture only the visually obvious epicenter of a health problem. If an undetected health problem is in its initial stages and beyond the visual epicenter, its constant eruption will keep arising, resulting in additional site visits to assess and treat. Reactive plant health care is always more expensive than proactive plant health care.

Additionally, a detailed record of consistent monitoring along with work conducted on each individual tree/plant will help to inform the developmental progress and future tree care decisions.


At WillowStone, we perform tree inventories for residents of Collingwood, The Blue Mountains, Wasaga Beach, and Thornbury, Ontario.