Hanging flower baskets from streetlamps on High Street is just another way for the city of Millville, Cumberland County, to beautify its arts district.

But a passer-by called police Tuesday to report that a pot of pink flowers had been joined by weed - two marijuana plants - near 112 High St., right outside an Italian restaurant.

Millville Police Capt. Tom Romanishin said that the department has no idea how the illegal pot got inside the city-owned pot.

"They're 12 feet in the air," he said. "Most people don't look 12 feet up in the air."

The plants are watered and fertilized regularly by the city all along North High Street's Glasstown Arts District, home to several art galleries, eateries and gift shops.

"The water they use has good fertilizer; I guess that's why they grew so big," said Mary Thomas, of the Tri-County Independent Living Center, on North High Street.

Thomas snapped a few pictures with her cell phone and speculated with police as to how the marijuana, which had grown to more than a foot tall, got there.

"We were thinking someone may have thrown some seeds out of an apartment window," she said.

Romanishin could not say whether any of the plant's leaves had been removed, but said that the plant would be destroyed.

No arrests have been made.

The city's Parks and Recreation Department, which is responsible for the flowers, could not be reached for comment.