Celebrating Five Decades
of Tree Planting
The Arbor Day Foundation has been inspiring people to plant, nurture, and celebrate trees since 1972. And that simple mission has had a global impact. The Foundation has grown over the last 50 years to become the largest member nonprofit organization dedicated to planting trees. And in that time, we have worked with members, supporters, and a strong network of partners to plant and distribute nearly 500 million trees worldwide. But our work is far from over.
Trees help slow climate change, foster biodiversity, improve our communities, and provide a stronger future for everyone. It is critical that we continue planting at scale, now more than ever before. Thanks to our strong connection with planting partners, the Arbor Day Foundation can keep pace with the increasing need — while consistently ensuring that the right trees are planted in the right places.
Our Roots Run Deep
We have accomplished quite a bit in the last 50 years. Learn about the major milestones we’ve met since 1972.
Resources
About Arbor Day
Known as the tree planter’s holiday, Arbor Day is a day for people to come together in recognition of the wonders of trees. Communities, schools, businesses, and individuals alike join together to plant commemorative trees, hand out free trees, provide education on tree planting and care, and celebrate all the benefits trees provide.
National Arbor Day is always celebrated on the last Friday in April, but many states observe Arbor Day on different dates throughout the year based on best tree planting times in their area. This celebration of trees, however, is not limited to the U.S. Countries around the world celebrate Arbor Day or a similar holiday dedicated to trees.

Celebrate Arbor Day
Find ideas and events.

History of Arbor Day
Learn how this holiday got its start.
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