Healthy Trees infographic aims to inform Torontonians of the healthy trunk diameter of the trees in the city, and ultimately how to care for their forest friends in order to increase the population of happy trees.

information design | 2016

In a heavily modernized society of Toronto, trees suffer a great deal of damage by the need for mass-production of goods and are therefore being cut down constantly. To combat this decrease of tree population and tree canopy coverage, there are many professional organizations that plant and maintain trees.

Many individuals believe that planting more trees would improve the tree coverage. Although planting is an important part of increasing tree population, it is evident that the average stem diameter in Toronto is only 16.3cm and trees of 30.6cm in diameter take up merely 14% of the entire Toronto tree population. Therefore, the best strategy in increasing the average stem diameter and tree canopy is to care for and preserve existing trees , instead of planting new ones.

However, government or environmental organizations cannot achieve this on their own. 60% of the tree population in Toronto (approximately 6.1 million trees) are on private property, owned by private house owners. A household owner would not usually think twice about the trees in their front lawn or backyard, therefore, this infographic simply shows the healthy stem diameter (cm) of the nine most common trees in Toronto. With the leaves as more easily recognizable icons of each tree, the home-owners can find out which trees are in their front or back yard and be informed of ways they can care for their tree with the methods below.




Monthly or every other month of deep watering is recommended for mature trees.

You can use the drip system for a total of 90 minutes or use the sprinkler for 45 mintutes per watering session.


Remove dead and diseased branches and remove any excess weight by pruning.

Do not cut the tops of your tree for it can worsen the state of the tree and possibly kill it.

If unfamiliar with the proper steps in pruning, consult or hire a certified Arborist.