How giant pumpkins grow so big

Every year, growers raise giant pumpkins and compete in annual weigh-offs against other colossal fruits. How do they get so big? (AP video/Shelby Lum). #pumpkin Subscribe: http://smarturl.it/AssociatedPress Read more: https://apnews.com​ This video may be available for archive licensing via https://newsroom.ap.org/home