Who We Are

Born from the efforts of a teenager over 50 years ago, TreePeople inspires and supports the people of Southern California to come together to plant and care for trees, harvest the rain, and renew depleted landscapes. TreePeople has activated more than 3 million people in planting and caring for more than 3 million trees.

TreePeople unites with communities to grow a greener, shadier, and more water-secure city in homes, neighborhoods, schools, and the local mountains. We work with both educators and students to train the next generation of eco-conscious leaders. We steward thousands of acres of land—maintaining habitats and protecting land from development. We develop original, actionable research that drives science-based policy. We train volunteers on the ground to help build a greener Southern California.

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Our Focus Areas


Providing students, teachers and the school community with the knowledge, tools and support they need to create environmental change.


Restoring ecosystems, planting trees, and incorporating nature-based solutions from Southern California urban streets to our greater watershed.

Policy & Research

Conducting cutting-edge research and facilitating policies that support nature-based solutions.


Working towards environmental and social justice among environmentally stressed communities.

Key Initiatives


Volunteering with TreePeople is fun and rewarding. Our events empower you with the support, training and tools you need to be an engine of change. Join us each week as we plant and care for trees throughout Los Angeles, remove invasive species and maintain our projects throughout Southern California.

Once Upon A Canyon Night

Beginning in August and running through October, this year’s Once Upon A Canyon Night season will feature the return of some of the series’ biggest fan favorites playing intimate performances as well as exciting nights of family-friendly fun.


For nearly 50 years, TreePeople has planted over 3 million trees with 3 million volunteers across Southern California. Purchasing these products helps us plant and care for the next 3 million!

The Canopy

Canopy funds will directly benefit our initiatives in urban and school greening for underserved communities, support our wildfire restoration initiatives, and allow us to provide environmental education to thousands of students each year.

Visit Our Parks

Imagine watching the lights of Los Angeles fade and the stars appear or walking down the trail learning something new about the natural environment, including native plants that you can use in your own garden! Join TreePeople educators for a variety of guided activities that are fun, informative and designed for the whole family. Depending on the time of year, a variety of options are available.

T.R.E.E. Talks Series

TreePeople’s signature public lecture series, bringing together thought leaders from a variety of environmental topics to discuss the future of our movement.

TreePeople Works

TreePeople Impact Report

In 2022 TreePeople continued to adapt to our changing times; we were able to center our purpose around the communities we serve through a return to connecting with people face-to-face, classroom-to-classroom, and volunteer-to-volunteer, in addition to providing online resources and education. TreePeople’s Coldwater Canyon Park is once again welcoming groups of excited schoolchildren to experience Eco…

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Native plant garden illustration

What I Learned Planting My Native Garden

Are you thinking of replacing your lawn with a native garden? Turning your yard into a native landscape can be a powerful tool in protecting local habitat, saving you money on your water bill and lowering your carbon footprint. It can seem like a daunting challenge: where do you start, how hard is it to…

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TreePeople and Water In Southern California – A Decades Long Push for a Resilient Future

“The story of Los Angeles is the story of water,” remarks Peter Massey, TreePeople’s Project Manager of Water Equity Programs, noting how California’s modern history is so deeply intertwined with water issues.  The booming population expansion and growth into an agricultural superpower that defined California in the 20th century would not have been possible without…

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TreePeople’s 2022: A Big Year for a Greener California

As 2022 comes to a close, we here at TreePeople are looking back at what was an exciting year for creating a greener future across Southern California. With the help of people like you – our volunteers, our donors, those who spread the word, and those who fought alongside us to push for resilient cities,…

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