The Ahmadiyya Muslim Youth Association (AMYA), has planted 10,000 trees across the UK since November 2012.
On Saturday March 2, more than 70 AMYA volunteers from the Putney, Roehampton, New Malden and Kingston areas, planted 1,000 trees in Horton Country Park in Epsom.
The planting session was run with the Lower Mole Project and Epsom & Ewell Borough Council.
Raffi Sami, 21, from Swanton Gardens, Wimbledon said: “The tree planting went really well, the sun came out for us and we were able to plant hundreds of trees.
“It was really enjoyable working with likeminded individuals from across the region, who want to improve the environment around us, and to build relationships with our neighbours.“
The group also organised litter picking and working at homeless shelters, and hope to serve the community alongside Epsom & Ewell Borough Council’s Environmental group.
Lutfur Rehman, 35, Bonner Hill Road, Kingston, is the regional youth leader for AMYA South West London.
He said: "Both safeguarding and beautifying the planet is an important part of our faith as Muslims and indeed a united ambition shared by people of all faiths and backgrounds.
"Events such as these also help to promote good community relations and our members are keen to get involved in similar schemes in the future."
The AMYA National tree planting campaign began in 2011, when a relationship was built with the Woodland Trust, a bond that grew when AMYA planted thousands of trees for the Queen's Diamond Jubilee.
Trees planted on Saturday included silver birch, hazel, blackthorn, hawthorn and common oak.
AMYA, who have more than 100 centres, is the oldest UK Muslim youth association and is based in Western Europe’s largest Mosque in Morden.
For more information please visit www.muslimsforhumanity.org.uk