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Happy Little Trees program

Green background with Happy Little Trees in white text and outline of a line of trees and Bob Ross with paintbrush

Happy Little Trees program

Happy Little Trees 5K T-shirt with trees, mountains and Bob Ross' drawing

Registration for the 2026 Happy Little 5K opens Nov. 1

Get ready to run, walk, roll or hike!

The 2026 Run for the Trees: Happy Little (Virtual) 5K is officially scheduled for April 18–26. We're giving you a full nine days to complete your 5K at your own pace and location, making sure you can celebrate both Earth Day (April 22) and Arbor Day (April 24)!

Participants could choose their own pace and any outdoor location. For a $36 registration fee, participants received a keepsake Happy Little T-shirt, finisher’s medal, commemorative bib number and shipping.

The 2025 event raised more than $200,000 for tree planting and forest protection, with each state receiving funds proportional to its participation.

Find 5K info »

Support Happy Little Trees!

Show your support for trees in state parks by donating to the tree planting and protection fund. This fund supports forest stewardship and protection in state parks, such as planting trees and fighting invasive species and diseases.

Make a donation