"Harry Potter" star Jamie Waylett has pleaded guilty to illegally growing marijuana.

The 19-year-old actor, who plays Vincent Crabbe in the wizard franchise, was arrested in April after cops allegedly found him driving with eight bags of marijuana in his car.

Authorities then ordered a raid on his mother's home in Camden, North London, where they were said to have found ten cannabis plants at the property.

The 19-year-old was summoned to appear in court and subsequently charged with growing cannabis plants.

Thursday's hearing, which took place in London at Westminster Magistrate's Court, was adjourned until July 21.

Waylett faces a maximum sentence of 14 years behind bars for production of a Class-B drug.