She had a green thumb, apparently, and decided to use it to grow a lucrative crop. A 68-year-old Hamburg woman was picked up by police after they discovered she'd turned her home into a pot plantation.

Police discovered some 170 cannabis plants in the woman's apartment, as well as a special lighting and ventilation system.

"It was very professional," said a police spokeswoman.

Evidently she wasn't growing the plants just because she liked the way they looked. Officers also found five kilograms (11 pounds) of freshly harvested marijuana that had already been packaged.

The woman, who shares the apartment with her 39-year-old son, said she was tending the plants and watering them, but doing it for him, according to a police spokesman.

Police removed the plants and are investigating the case further.