A Duxbury man is facing drug charges after police allegedly caught him tending to marijuana plants — some as tall as six feet — behind a Marshfield home.

William M. Perry, 21, of Bolas Road was arrested on Sept. 10 and pled not guilty in Plymouth District Court to charges of conspiracy to violate the drug law, marijuana possession and possession to distribute a Class D drug.

On Sept. 6, Marshfield police found a crop of about 32 marijuana plants, varying from one to six feet in height, growing behind house in the 300 block of School Street in Marshfield, according to reports.

While watching the area on Sept. 10, officers observed two males carrying water pails and beginning to water the plants. Officers confronted the men and found a pipe freshly packed with marijuana at their feet, according to reports. The two men were identified as Perry and Kevin R. Shea, 30, of Marshfield.

Police also found a bag of pot in Perry’s front shirt pocket, according to reports.

Shea allegedly told police he had been growing the plants behind his girlfriend’s house. The residents consented to a search of the home, where police found several ounces of marijuana in baggies, along with records of transactions, pipes and other drug paraphernalia, according to reports.

Both men were arrested and later released on bail. Perry is due back in court on Nov. 15 for a pretrial hearing.