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Best marijuana plant, fastest joint rolling and a Doritos eating contest.

Those are a few of the new marijuana-themed events at the Denver County Fair on Aug. 1-3.

Colorado and Washington are the only states with legalized recreational marijuana. Recreational pot went on sale in Colorado on Jan. 1 for people 21 and older.

"We look at the trends and what's happening in our city, and we want to reflect that," said Tracy Weil, the fair's marketing and creative director, in an interview with USA TODAY Network.

Marijuana plants will be judged for plant quality, not potency.

Other contest categories include:

• Best hemp fabric
• Best homemade bong
• Best brownie recipe
• Best roach clip
• Best tie-dye

Participants must be 21 or older to enter the "pot pavilion." The marijuana events will take place in a separate area from main fairgrounds in the National Western Complex, Weil said. Also, there will be no marijuana consumption on-site. Since plants will not be allowed in the complex, the marijuana entries will be represented by photos, and the joint rolling contest will be done using oregano, he said.

"We have a lot of families and kids at the fair, of course, and we wanted to be respectful of that," Weil told The Associated Press.

Denver's fair is already known for its quirkier events, like a speed text-messaging contest, a bicycle rodeo and a troupe of performing pigs. About 20,000 people attended the fair last year.

Colorado State Fair organizers will not include marijuana-related events at the statewide fair.

"You never say never, but in the short-term, I don't see that happening just yet," said Chris Wiseman, general manager of the Colorado State Fair, in an interview with USA TODAY Network.

Contributing: The Associated Press

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