Boulevard Tree Planting
Cottony Ash Psyllid Outbreak
Saskatoon is currently experiencing an outbreak of cottony ash psyllid (CAP), an invasive insect that impacts black and mancana ash trees. In 2018, the City removed approximately 1,600 ash trees from boulevards and parks. An additional 2,900 trees will be removed in 2019 and 2020. At this time the City is considering the resources required for tree replacements and developing a process to manage replacement planting for trees removed as a result of CAP. Please refer to the Cottony Ash Psyllid Response Plan webpage for CAP-related tree and stumping removal schedules and replacement planting information.
Urban Forestry is responsible for planting and maintaining all City-owned trees, including boulevard trees. A boulevard is public land adjacent to private property, such as the strip of lawn located between the curb and sidewalk.
City Boulevard Width
What you can expect from us
- All tree planting requests will be reviewed and assigned to a Forestry Technician within two business days. A Forestry Technician will schedule a site inspection to determine if there is an appropriate planting site. Inspections are done between May and October in the order in which the requests are received.
- A notice will be left at your residence or business at the time of inspection advising whether or not a suitable planting site has been identified. If there is an appropriate planting site, a green stake will be placed on the boulevard to mark the area where the tree will be planted and the notice will include the species selected. If there are no underground utility conflicts your request will be placed in a planting queue to be completed by the end of October.
- The City is responsible for all pruning maintenance.
How you can help us
- Homeowners are responsible for watering new trees, unless otherwise noted. For newly planted trees, water twice a week for the first month and then once every 7 to 10 days for the next 3 years. Water established trees during dry periods using 10 gallons (45 litres) of water for every 1 inch (10 cm) of tree diameter. The soil should be saturated to a depth of 3 to 4 inches (30 to 40 cm).
- Avoid herbicide damage when you (or your lawn care company) look after the grass around the tree. Do not apply any herbicide in the area near the root ball, trunk or leaves.
- Keep grass and weeds away from the trunk. Trees can establish more quickly when not competing with other plants for nutrients and water.
- Mulch with wood chips or other organic mulch around the base of the tree to keep soil cool and moisture in. Keep mulch away from the trunk of the tree.
Urban Forestry proactively selects established neighbourhoods and parks each year to replace and plant new trees as part of the Urban Reforestation Program. A Forestry Technician chooses appropriate plant sites and tree species that allow for successful establishment and a sustainable urban forest. Planting takes place between June and October each year.
Tree Planting Guidelines
Below is a list of our planting guidelines:
- Proximity to existing trees (we must be a minimum of 7m from an existing tree)
- Small boulevard width (the City boulevard must be a minimum of 3 metres)
- Infrastructure conflicts (e.g., fire hydrants, street lights, overhead high voltage lines, underground water lines)
- Proximity to intersections (for safety reasons we must stay 7m from a street corner)
- Proximity to Stop, Yield and 30 km/hr School Zone signs (we must stay 7m from the front of a sign)
- The tree planting site must be up-to-grade.