It has made funding available to pay for the trees, and said planting help will be provided via the council and its partner agencies.
Last year it planted 4,000 trees and two hectares of new woodland with community woodland body City of Trees. It has four more woodland projects in the pipeline or near completion with over 2,000 trees in each.
In the last two years it has also planted nearly 900 trees in streets and open spaces, where it said they were very effective at capturing and reducing harmful emissions from vehicles and industry.
Councillor Barbara Brownridge, cabinet member for neighbourhoods, said: "It’s proven that trees can have many benefits for the borough, including to help filter pollution and reduce flooding – while also improving the landscape.
"Over the last few years we’ve planted thousands of trees across Oldham as part of our flood risk management strategy. If you own land and think you can help then please get in touch with us. If everyone does their bit then we’ll all benefit."