When my kids were ;in 4H, they all raised pumpkins. They even tried a Japanese developed
plant hormone, the name of which I now forget. But they never got really big ones, such as:

"The world-record pumpkin is a 1,061 pounder --
raised in Lowville, N.Y., last year. As the first
winner to achieve 1,000 pounds, it won a $50,000
prize from the World Pumpkin Confederation, of
Collins, N.Y. The organization is offering another
$50,000 to the person who raises the first
1,500-pound pumpkin."

Not even the Peanuts comic strip Giant Pumpkin got that big!