Police raided a address in Crawley on Sunday and found 40 cannabis plants, but no owner.
Officers executed a warrant in Tuxford Close and are now searching for the owner of the plants.
Crawley Police said on Twitter: “Unfortunately, the owner was not there.
“Do you know anyone green fingered they might belong to?
“Thanks to local community members talking to us who foiled their plot!”
Anyone with information should contact police on 101.
In an emergency call 999.