A 71-year-old woman was arrested on drug charges after police discovered several marijuana plants, one that was more than seven feet tall, in her yard.

A deputy sheriff discovered the plants while driving past Betty Holt Walker's home earlier this month. Walker said she planted them to "keep animals away from her garden."

Upon investigating her yard, police found five smaller plants behind a shed, as well as marijuana stems and seeds and a water bong made from a soda bottle inside the house.

Walker is now charged with manufacturing marijuana and felony possession of marijuana. She is scheduled to appear in court Sept. 12.