Cootes Paradise is home to the highest concentration of plant species in Canada at over 750 native species; however, an additional 300 have also been introduced following European settlement of the area, putting strain on the local ecosystem's ability to function. Among the trees found in Cootes Paradise are various species of oak, maple, and pine, as well as less common species such as sassafras tree, Kentucky coffee tree, and tulip tree. Examples can be found along the native trees walk across from the nature centre. In recent years there has been a noticeable decline in forest health and loss of trees due to ongoing anthropogenic stresses in the region, including surrounding Cootes Paradise. In 2005, following the death of a child participating on a nature hike during a wind storm, the RBG was forced to cut down numerous dead and dying trees that posed a public-safety concern, and alter the trail system to ensure some of the sensitive habitat could remain undisturbed by these activities.