The plant probably won't grow to its full size in that container, if pumpkins are like tomatoes, which get more leaf nodes per foot of stem in smaller containers, and probably smaller leaves, somewhat, too.

that is wonderful please keep an update on the fruit...very nice

I didn't mean to be a naysayer about the pumpkin above. It's certainly a good project, and you can probably get pumpkins. I'm just guessing they and the plant will be smaller is all. However, you might be able to find a way around that. My original comment was to sherylgallant56.

Wow, when did you plant the seeds? What kind is it? sugar pie? I suspect you'll get a mini pumpkin. Keep us updated.