More than 400 cannabis plants were found in a house in Reddish.
Police say between 400 and 500 plants were discovered at the farm at a house on Reddish Road on Friday (May 14).
The property was empty when officers made the discovery. No one has been arrested.
GMP are urging for anyone with information to contact the force.
People can call 101 quoting ref 002716-13052021 or the independent charity Crimestoppers anonymously on 0800 555 111.
