Across North America vast herds of bison destroyed woody plants in the area by horning, rubbing, and feeding on bark. Males made their mark during “rutting” (mating season). Trees are not naturally part of our vegetation in a tallgrass prairie landscape, due to risks from severe weather events, drought, insects, diseases, and climate change. Calgary has trees on both public and private lands, in parks, natural areas, and green spaces. However, 77% of the urban canopy is on private land. A Guide for Plant Appraisal estimates our urban forest on public land is valued at $1.3 billion. The urban forest is aging, and other trees are lost to development. Planting 3,500 trees per year will maintain the status quo. The plan is to plant another 4,000 trees per year by 2060.
The City owns and offers Calgary Open Data. Enter your address to view City trees and zoom in to the neighbourhood level. A mobile device near a tree will pan to your location. Rank trees by The Alberta Tree Species Rating Guide. Reporting a City tree? You can now use the 3-1-1 Mobile App. Ask about a young tree that needs help, a mature tree, or a Heritage Tree. On your property, you may need a permit to remove a tree. Where a tree once was may be a good spot to plant a new one. Enjoy YYC Trees Guided Walks. In-person workshops and online programs are Pruning Q and A, Keep Your Tree Happy and Healthy, and Pest and Disease Treatment. Information sessions are 1.5 hours long. Urban Forestry Technicians offer advice. Space is limited. Register for one session only, since the content at each will be the same. For locations and dates check out http://www.calgary.ca/parks/trees/education-workshops.html.
