Work on replacing the turf at Piccadilly Gardens has been completed following a six week project carried out by the Piccadilly Partnership.
The 26, 909 sq ft public space is now fully open to the public in time for the May bank holiday.
Alex King, Piccadilly Partnership manager, said: "This green space is becoming increasing popular with more than 80,000 people walking through every day. It's important to create the right environment for everyone to enjoy. We've chosen a particularly durable grass that requires little water to maintain its colour and is used in other public places with a large footfall such as Chester Zoo."
Piccadilly Partnership is managed by CityCo, Manchester's city centre management company.
CityCo works in partnership to manage and market city centre Manchester. CityCo is an independent, not-for-profit, company funded by both public and private sector.
The project cost was not disclosed.