It Takes Two To Tango In Jail

Everybody on the whole cell block was dancing to the Jail House Rock.
Except for Bob and Joe. They were doing the Tango.
I’m not sure how they managed to get the rose to pass between their mouths.
Does someone grow roses out in the fields?
I know they check for marijuana and other contraband.
Is a rose contraband?
Perhaps one of the guards or administration secretaries got a bunch of roses for an anniversary, or a birthday?
Because I don’t think you can smuggle one in the usual way without damaging the rose.
Or wanting it in your mouth.