A Further 426 trees have been planted as part of a project to introduce more than 2,500 trees across Sunderland.
The first phase of the planting has now been completed, with new trees appearing throughout various areas of the city.
The tree planting project was undertaken after Sunderland City Council won a Government grant in a bid to plant more street trees in urban areas.
There are already an estimated 13,000 street trees in Sunderland. Trees in cities and towns have been scientifically shown to bring many benefits such as helping to filter pollutants and improving air quality.
Sunderland City Council's Cabinet Member for Environment and Transport, Councillor Amy Wilson said: said: "I am delighted to see this project completed and more trees appear on our streets.
"Trees in and along our streets bring many benefits; providing better air quality, improving the look and feel of our neighbourhoods, and contributing to our aim of being carbon neutral by 2030."
The bid was for 424 heavy standard trees, which are generally already around three metres (nearly 10ft) tall, and 2,000 smaller trees known as whips, which are two years old and around a metre (nearly 3ft) tall.
All of the mature trees are now in place, in areas including Ryhope, Fencehouses, Fulwell, Hendon, Hylton Lane Estate, Plains Farm, Southwick, Backhouse Park, Barnes Park Extension and Thompson Park.
Smaller trees will be planted between Grindon and Thorney Close this autumn.
Species planted throughout Sunderland include Alder, Aspen, Oak, Bird Cherry, Rowan, Sycamore, Lime and Whitebeam.
The planting is in line with the council's emerging plan for making Sunderland more dynamic, healthy and vibrant.