Can you hear corn grow at this time of year? In fact... Jun 13, 2023 10:45 am by KKRC-FMIllinois in the News Share on Facebook Tweet Email Images KKRC-FM (June 12) 'On very still nights you can hear a popping or cracking noise,' says U of I crop physiologist Fred Below. 'What you hear is the cell walls of the stalk expanding. Mostly I believe it is the tracheids expanding.' Share on Facebook Tweet Email