The urban forestry section of the Parks and Recreation Department manages about 51,000 public trees in city parks and street rights-of-way.
We are committed to maintaining a healthy and safe urban forest as well as preserving an extensive and diverse tree cover for future generations. A collateral benefit is maximizing the visual, social, economic, and environmental services this natural resource has to offer for our residents and visitors. These efforts have earned the City of Boulder the Tree City USA designation by the National Arbor Day Foundation since 1984.
In response to recent and potential impacts to Boulder’s urban tree canopy including, but not limited to, the current Emerald Ash Borer (EAB) infestation, climate change, and individual severe weather events such as the 2002 drought and extreme temperature fluctuations, Boulder’s Parks and Recreation Department will complete a broader scope Urban Forest Strategic Plan. Branching Out Boulder is an initiative to get the community involved in the development of the Urban Forest Strategic Plan (UFSP). Please visit the Branching Out Boulder page for information about how to get involved, take a short survey and share a tree story. You can also sign up to receive e-mail updates about the UFSP and upcoming opportunities to share your voice in the process.
The Urban Forest Strategic Plan will make recommendations for urban tree management for city parks and street rights-of-way.
Learn more about Emerald Ash Borer's presence in Boulder and what you can do about it. EAB is a federally quarantined, invasive tree pest.
Services and Programs
- Rotational pruning for tree health and safety of both trees in city parks and in the public street rights-of-way
- Street tree planting program
- Removal of dead, diseased or potentially dangerous trees
- Tree safety inspection program
- Integrated pest management program
- Commercial tree program
- Maintenance of more than 200 landscape flower and shrub beds in city parks
- Coordination of the Adopt-A-Flower Bed program
- Providing development design review and enforcement of tree protection codes
- Arborist licensing
- Emergency response after major storm events
- Tree watering and mulching
- Tree inventory
For more information please contact Kathleen Alexander, City Forester at 303-441-4406.
Forestry and Horticulture
- Branching Out Boulder
- Service Request - Forestry
- Urban Forest Strategic Plan
- Volunteer - Parks and Recreation
- Emerald Ash Borer Information
- Arborist and Tree Contractor Licensing and Listings
- Recommended Tree Species for Boulder (Quick List)
- Front Range Recommended Tree Species (Long List)
- The Benefits of Trees
- Urban Forestry
- Street Tree Planting Program