DENVER -

Marijuana is joining roses and dahlias in blue ribbon events at the nation's first county fair to allow pot competitions.

This weekend's Denver County Fair includes a 21-and-over "Pot Pavilion" where winning entries for plants, bongs, edible treats and clothes made from hemp are on display.
    
There's no actual weed at the fairgrounds. Instead, fairgoers will see photos of competing pot plants and marijuana-infused foods. A sign near the entry warns patrons not to consume pot at the fair.
    
A joint-rolling contest uses oregano, not pot. The only real stuff allowed at the event? Doritos, to be used in the munchie contest.
    
The fair opens Friday afternoon and runs through Sunday.