One giant pumpkin plant will produce on average 3-5 pumpkins, smaller varieties can produce up to around 12. There may be more female fruit then this on the plant, but not all of them will develop.
The general rules for growing giant pumpkins is that you will eventually only have one pumpkin on the vine, and you will remove the rest. This allows the plant to direct all the growth into the one pumpkin. Although there is some thought now it doesn’t matter how many are on the vine.
Some people keep a second pumpkin on the vine as a type of insurance, just in case something happens to the other one.
What I am going to do is have two pumpkins up until they have set on the vine, which is around the size of a basketball. Once getting to this size I will be selecting the better of the two, removing the weaker one. And letting the plant concentrate on the one pumpkin. If something happens to it while it is growing, well that’s the chance I am willing to take.
I have planted two pumpkin plants, too my surprise they grew pretty quick and I now have 6 pumpkins growing, they are orange and some are grey, I have never seen an orange pumpkin other than on T.v… my son loves watching them grow in size. I am just giving it a go and thought I would share with you:) thanks for the information on this site, it has been very helpful.
Hi Gloria, thanks for letting me know how your pumpkins are going, it is very awesome having the orange ones, and kids love watching them grow.