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Million Tree Challenge

The Million Tree Challenge seeks to inspire Londoners to plant one million trees to enhance environmental and human health in our Forest City.

Now that we have reached over 450,000 trees registered, 2021 is set to be a year to really push the total up. We need everyone in London to be part of this. Why not make plans now how you can plant a tree on your property - or donate to have trees planted. If you have planted any trees since 2011, please take the time to register them at and get counted!

Watch our 1 minute animation that describes what London's Million Tree Challenge is.

Check out our video about London's Million Tree Challenge.

See our 2013 Report to the Community info graphic.

Watch the video of the launch of the Million Tree Challenge in June 2011

See who our generous MTC Sponsors are!

Be One in a Million! Join by registering your trees, volunteer to plant trees, suggesting locations to plant trees, and sponsor a tree to plant a leafy legacy, one tree at a time.

Join the Challenge today by visiting


Count Your Trees


Suggest Locations   Sponsor a Tree

ReForest London is proud to be a founding partner with the City of London of the Million Tree Challenge. Learn how your organization, institution or community group can become a partner of the Million Tree Challenge.


View and download the Million Tree Challenge Partner Kit
MTC Partner Kit







View MTC Sponsorship opportunities. Click on the flipbook below.