An eagle-eyed pedestrian spotted pot plants in the garden at this Hamilton court house. (Google)

It's like begging to get caught: someone planted pot in the garden outside Hamilton's Unified Family Courthouse.

A woman was walking past the courthouse on Main Street West on Thursday when she saw what looked like marijuana plants growing in the front garden.

She told court staff and called police, and when officers arrived they found seven "immature" marijuana plants, police say.

"It sounds like a prank or a joke," said Debbie McGreal-Dinning, media relations officer for Hamilton police. "Good eyes on the observer, though."

Officers removed the plants. It's unknown who is responsible for the planting, police say.