Perry appeared in 4th District Court in Orem to enter her plea in a case prominent Los Angeles attorney Gloria Allred described as a gross injustice.
"Today, law enforcement in Orem has enshrined itself as the laughing stock of our country by prosecuting a 70-year-old great-grandmother for allegedly not watering her lawn," Allred said. "This ill-conceived action ensures Orem's law enforcement authorities first place in the [Guinness World Records] for stupidity."
Perry's next appearance will be on Oct. 11 for a pre-trial conference.
In July, Perry was cited by Officer James Flygare of the police's Neighborhood Preservation Unit for failing to water her lawn. Perry refused to give her name to the officer and, when Flygare tried to stop her from going back inside her house, she reportedly tripped and injured her nose.
She was arrested and taken to police station but released shortly afterwards.
An investigation by the state Department of Public Safety cleared Flygare of any wrongdoing, and city officials pressed charges against Perry on the landscape violation, a class C misdemeanor, and interfering with a police officer, a class B misdemeanor.
Allred, a high-profile Los Angeles attorney who has represented the family of Nicole Brown Simpson, O.J. Simpson's murdered wife, said she was there to provide support for Perry, whose criminal defense is being handled by M. Paige Benjamin, a Provo attorney.