Meet Our Mascots!


The Happiest Tree There Can Be


The Big Green Oxygen Machine

treena KidsWithO2

Treena and O2 enjoy making new friends!


Treena and O2 are the friendly mascots of Our City Forest. They love to visit with kids! They make appearances at tree plantings, community outreach events, and most often at our Planet Tree educational programs. To organize a visit with Treen and/or O2 in your community, school, or organization, have your parent or teacher contact Our City Forest at (408) 99-TREES or email us at This email address is being protected from spambots. You need JavaScript enabled to view it. .



We have 15-gallon shade trees available for yards, park strips, neighborhoods, parks, schools, and private property throughout San Jose. We also provide information, guidance, and services for planting, caring, and maintaining your tree(s).

             tree bullet Get a Tree      tree bullet Care for Your Tree


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Become the 'heart and soul' of OCF by participating in a 20 hour course that will empower you to become and advocate and steward of your urban forest. 

       arrow purple Learn more about the program



Increase your knowledge of the urban ecosystem, especially the urban forest!  We provide classroom presentations and workshops covering topics relating to our urban forest.

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Planet Tree Youth Education Programs


 green and healthy bike

Join neighbors to "green" your life.  Attend workshops and documentaries to learn simple changes that can save money and the environment.

       leaf bullet Green & Healthy Programs and Workshops



The OCF Community Nursery and Training Center is home to hundreds of homeless trees. The Nursery is a community service provided by Our City Forest to connect the resources of available trees to worthy planting projects ready to adopt trees.

      bullet yellow More information and directions


 planting demo small

Have fun learning how to plant and care for your own trees by attending our various workshops! Click here for more information.

      arrow orange Calendar of upcoming Training Workshops
      arrow orange Community Nursery and Training Center


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Expand your knowledge of some of the city's most unique trees by attending free tours in beautiful locations throughout San Jose!

   arrow red2 More information and upcoming tree tours


special programs

Discover more ways to be a part of OCF!  We offer additional programs which focus on volunteering, seasonal events, education, and more.  To learn more, click on the links below.

     arrow purple AmeriCorps
     arrow purple Earth Day & Arbor & Day Programs
     arrow purple Living Tree Christmas Program
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Tree Advocacy


Contact Us

(408) 998-7337
1590 Las Plumas Ave
San Jose, CA 95133
Nursery: 1000 Spring St.