City of Trees Challenge

One tree for every household in the city; One seedling for every person in the city.

The City of Boise is leading a new movement for community recovery and climate resiliency – we’ve set a big goal – and we need your help to make it happen.

  • Together, over the next decade we will plant one tree for every household in the city, that’s 100,000 trees!
  • We also challenge our community to sponsor one seedling for every person in the city in our forests across the state of Idaho.

It’s easy to get overwhelmed by the global climate crisis and impacts of the global pandemic. As an individual citizen it’s difficult to understand how you can make and impact and where to start. Scientists at NASA and elsewhere have told us that we can offset carbon dioxide by planting trees if we plant a lot of them, up to 1 trillion trees. If you break that number down and divide it into countries, states, cities, and people, there’s a part we can all play at our own home and in our community.

The city is collaborating with the Treasure Valley Canopy Network and The Nature Conservancy Idaho Chapter to engage Boise residents. The canopy network will help the city involve the local green industry to build economic recovery and resilience, while leveraging non-profit organizations locally and around the world to support this tree planting effort.

    Trees Planted to Date

    The Challenge

    The City of Trees Challenge responds to the call to action from NASAThe Treasure Valley Forest Carbon Assessment and the City's Community Forest Management Plan.

    • This community-wide initiative inspires Boiseans to plant a new tree for every household across the city - in every corner of every neighborhood.
    • We will grow the impact in forests around the state by empowering Boiseans to sponsor a forest seedling for every Boise resident (235,000 seedlings).
    • Through our collective relationships with state, national and worldwide organizations, Boise, the Treasure Valley Canopy Network and The Nature Conservancy will challenge cities across Idaho, the United States and the World to join in this effort.

    A Healthier More Resilient Boise

    The path to a resilient Boise begins today! As we heal from the global health and economic crisis, we will come together as Boiseans and support our local businesses and green industry, to build a more resilient community and environment for the future. Tree planting will begin at a small scale this spring and expand with a larger launch in fall 2020 and continue for the next decade.


    Why Trees

    Trees, by producing shade, reducing heat, conserving energy and cleaning air and water, provide a tangible climate solution that every homeowner can implement at your own home. Local data shows that urban heat is increasing across the city. City leadership and the Treasure Valley Canopy Network need you to join the challenge and plant trees to help us grow a better local climate for all Boiseans.

    Take a Tour Using our Local Heat Map

    The Value

    Trees cultivate and stimulate our green economy generating 10,000 seasonal and full-time jobs and over $650 million in sales. Additionally Boise's trees provide an estimated $500,000 in stormwater benefit, $300,000 in reduced summer energy use and $3.3 million in air quality benefits.  The City of Trees Challenge and partners will grow that bottom line.


    two people talking with masks on
    Credit to Guy Hand


    The City of Trees Challenge is for anyone and everyone within the City of Boise and beyond! Please engage with us to make help make our city, our state and our country more healthy and resilient.

    Support the Challenge

    Donate toward the Challenge by joining our City of Trees Challenge CAUZE

    The Treasure Valley Canopy Network has joined with a local philanthropy non-profit, Cauze, to provide everyone an opportunity to support the Challenge. Your tax-deductible donation will go directly to support the planting and growth of Challenge trees in Boise and across Idaho and the US. A donation as small as $5 will plant a seedling in an Idaho forest and a donation of $400 will plant a large tree in our city. We greatly appreciate your individual investment in the health of our local environment.

    Boise Residents

    Join the Challenge – Make Your Tree Count

    • Plant and Care For Your Tree
    • Stay informed - Interested in joining and supporting the challenge, but not sure where to start?
    • Explore benefits – See what trees are doing for our community
    • Upcoming Events –TBD

    Interested Cities

    The City of Trees Challenge provides a model and resources that can be used by other cities in Idaho and across the US to build a climate resilience platform through tree planting. Contact us if your city is interested in joining the Challenge.

    Interested Partners

    The City of Trees Challenge has already built many great partners to support our platform, but we need more help! If your organization is interested in partnering to support the Challenge, contact us.


    In order to plant trees that will thrive for the next 100 years, we must plant the right tree in the right place and for the right reason. We have created these resources that can help your tree survive and thrive.

    How to Plant Your Tree

    Other Resources


    looking up at a tree from the ground

    Working Together

    The City of Trees Challenge is first and foremost a community initiative. We cannot accomplish our goals without people and organizations across the city taking action to plant, grow and maintain healthy trees. To help achieve a meaningful and impactful Challenge our partners within the city and across the country are vital to our success.

    Lead Partners

    The Treasure Valley Canopy Network is a key partner, helping the City develop goals and resources to plan for, plant and maintain these trees over the next decade so they survive and thrive to have a positive impact on our local climate. The Network is also building relationships with local and national partners to help build and fund a Challenge that will have strong roots in Boise and branch out across Idaho and the country.

    Learn More

    The Nature Conservancy in Idaho is proud to be a lead partner in the City of Trees Challenge in the effort to plant 235,000 seedlings in forests around Idaho. Tree planting is one of the identified activities to address climate change through Natural Climate Solutions. By working with both urban and rural partners, we believe this effort will connect all Idahoans, because Idaho’s changing climate is impacting the places we love, our lifestyles and the health of our communities. The time to act is now, and the way forward is together.

    Learn More


    The City of Boise is partnering with Boise Farmers Market and Boise Neighborhood Associations to distribute 500 free trees to homeowners in October 2020. These valued partners will help ensure trees are distributed across the city in a safe and healthy manner to help address areas of greatest need (including: low tree canopy, equity and areas of high urban heat).

    boise farmers market

    Energize our neighborhood

    The City of Boise is proud to be one of the first cities in the United States to pledge the US Chapter, joining this global trillion trees platform with our commitment to plant 100,000 trees in the city and sponsor an additional 235,000 seedlings to be planted in Idaho forests. The City of Boise is also proud to be one of the first cities to pledge the U.S. Chapter, joining this global trillion trees platform with a commitment to sponsor an additional 235,000 seedlings to be planted in forests around Idaho.


    The City of Boise is recognized as a Tree City of the World by the Arbor Day Foundation and Food and Agriculture Organization of the United Nations (FAO). This international recognition celebrates cities across the globe that meet core standards for the planning and care of urban trees and forests.


    The City of Boise is pursuing Impact Certification for the City of Trees Challenge through City Forest Credits. Impact Certification will provide standardized project reporting with science-based metrics and scores for social equity, human health and environmental impacts (carbon, air and water quality, energy conservation).

    Learn More


    Contact the City of Trees Challenge team via email

    Are you interested in receiving updates on the challenge or participating in upcoming volunteer opportunities? Click the button below. 


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