The Mirror says Rooney turned up at a community garden centre for adults with learning difficulties.
The Everton striker, who admitted being almost three times the drink-drive limit last month, is working there, as part of a 100-hour community service order he received, along with a two-year road ban.
The star is said to be desperate to convince wife Coleen he is turning his life around – after being caught with another woman while drunk in the car after a night out.
A source said: “Wayne knows he has got to do this and has really thrown himself into it. He doesn't mind getting his hands dirty and he looked like he was enjoying it."