How do people grow giant (>2000lbs) pumpkins?

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How do people grow giant (>2000lbs) pumpkins?

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There are a few varieties of pumpkin that grow especially large (Atlantic Giant and Big Max are two popular varieties). It’s pretty easy to get these varieties to grow 100 to 200 lb pumpkins. These varieties still have variance in the size of the resulting pumpkin that depends on the individual seed’s genetics, and the growing conditions.
After the normal maximums are reached it takes good care to keep the pumpkin’s weight causing it to collapse.

My son actually wanted to do this in elementary school and we tried it! He bought a book about it but basically it came down to: 1. Buy seeds specifically to grow huge pumpkins and 2. Bury every blossom but one so that all of the plant’s energy goes into that one pumpkin. We did grow pumpkins that were unusually large but nothing close to 1000lbs.

Fun fact for old people: Jim Martin of Faith No More went on to be a champion pumpkin grower after he stopped being a rock star.

Plenty of info online.
Here’s one from [The Ohio State University.](https://ohioline.osu.edu/factsheet/hyg-1646) Ohio is a big pumpkin-growing state (and also a big-pumpkin growing state). Home to the [Circleville Pumpkin Show.](https://www.pumpkinshow.com/)

Giant pumpkin seeds of course! As others have mentioned the giant varieties have been bread over years for giant pumpkins. You can buy some pretty big varieties online at Burpee or other seed suppliers.

You also need to provide that plant with its preferred growing conditions such as soil type, nutrients, sun light hours, proper amounts of water, etc.

Basically you start a normal pumpkin plant of your chosen variety with plenty of space around it. As it grows, you separate the different branches of the plant so they grow outward from the center. One branch is selected. The other branches are buried so they become root system instead. The single branch is pruned after a strong flower which will become the fruit.

The result is one branch growing one fruit, with all other branches turned into additional root system. You’ll need all the roots you can get for the next step, which is water. Every day, multiple times per day, a LOT of water is given to the plant across the entire area now covered by root system. At peak this can mean more than 1000 gallons per day for one fruit.