Denver's Urban Forest

As Downtown Denver continues to grow and thrive, the BID Tree Health Program aims to develop a well-canopied pedestrian environment which provides increasing benefits to property owners and pedestrians alike.

The Tree Health Program cares for approximately 1,800 trees within Downtown Denver.


In 2018, the BID made the benefits of the Tree Health Program a part of base services for commercial properties that pay BID assessments. Not only does this relieve property owners of the burden of tree care, but also helps to support a healthy tree canopy by putting all the downtown trees under a centralized care system. The Tree Health Program cares for approximately 1,800 trees within Downtown Denver.

Included Services:

  • Fertilization
  • Pest management
  • Organic soil enhancements
  • Salt detox
  • Pruning

Additional Services Available:

  • Irrigation installation
  • Irrigation management
  • Seasonal watering

Join the program!

Not a BID-paying commercial property? Don’t worry! We are more than happy to provide service quotes and tree care information for any property owner. Last year, the average care cost per tree was $90.00 per year, a nominal expense. This added attention will give your trees a better chance to develop and maintain a healthy canopy.

Program Benefits:

  • Safeguards your investment in trees.
  • Healthy trees increase your property value.
  • Increase retail spending.
  • Develops robust canopy to create an inviting pedestrian environment.
  • Healthy trees reduce crime and vandalism to property.
  • Trees help improve air quality and reduce air temperature.
  • Reduces energy consumption in buildings.
  • Reduces irrigation needs for perennial plantings.
  • Lessens the workload for your staff.


Partnering with the Tree Health Program has alleviated our company's tree care responsibilities. The mature trees in front of our building enhance the streetscape and are of significant benefit to the character and operation of the building. They environmentally provide shade to the building reducing the head load in the summer which will continue to be more important in the future years.

A.J. Zabbia, Principal, 68West

How Can You Help?

  • Keep an eye on the trees at your property. If the tree’s leaves look brown or wilted, it could be a sign that the tree is not getting enough water. Small holes on the trunk of the tree could be a sign of boring insects.
  • Keep your tree pits clean. Buildup of trash in tree pits is not only unsightly but also could lead to harmful toxins being leached into the soil.
  • Ensure proper irrigation and watering of trees. In Denver’s arid climate, it is essential that the trees are receiving enough water.
  • Avoid piling snow at the base of trees. This snow typically has high levels of salt, sand, or de-icing chemicals in them that can leach into the soil and poison your tree. Additionally, the moisture from the snow can decay the base of the truck, leaving it susceptible to insects and disease.
  • Consider expanding your tree pits. Most trees in Downtown Denver live in a 5×5 ft. tree pit. This type of pit does not provide enough soil for trees to thrive. Because of this, the average lifespan of trees downtown to be merely 12 years.
  • Become familiar with why urban trees are important.