Welcome to plant trees with ENO!

ENO organizes tree planting events twice in a year around 21 Sep and 22 May. In September we plant peace trees and in May the event is held to pay attention to UN’s Day for Biodiversity. Welcome to join and spread the message !

NEXT  EVENT:

22 May 2026

Welcome to plant trees and take part in the “A Tree for Life” art competition

Who needs a cape to be a hero? Trees do it just by growing! Join ENO Tree Planting Day on 22 May 2026 and take part in a global action for the environment and climate. Schools and communities around the world are invited to plant trees, learn together, and make a positive impact. By planting trees we help the environment to fight climate change but also support adaptation to a changing climate. Bring your students’ superpowers—curiosity, creativity, and teamwork—and take action for the future. The event also includes the tree art competition, “A Tree for Life” where students can express their ideas and love for trees, forests, and nature through art. Take part and become everyday heroes for our planet!

Read detailed instruction from here

Register your school or community here

Speech for students is included in the end of instuctions

Download campaign social media material here

Short history of ENO Tree Planting Days

ENO started in 2000, The first four years were with mainly online activities. As many schools had problems with Internet we needed some activities offline. Then the idea of tree planting arose in 2004. The international day for peace was chosen as the first ENO Tree Planting Day and since then, every year ENO schools plant trees for peace around 21 September.

On 21st of September 2004, ENO tree planting gathered 50 schools in 30 countries. Tree planting made ENO more popular and next year over 200 schools joined.  Afterwards, another ENO tree planting day was organised around 22 May, the international day for biological diversity. Until the end of 2020, ENO Tree Planting Day has been organised 29 times.

ENO made a commitment of planting 100 million trees by 2017 in Rio+20 Summit. Schools planted 30 million trees and countries made their own commitments. The number was not yet reached but we are working on the achieve this number. We have organised tree planting contests called ENO Treelympics since 2014. A forest project will take place 2019-2025 based on climate agreement by schools in 2019 ( an answer to Paris agreement).

Some images of the event during the years: