I want to grow some giant vegetables. Not necessarily a pumpkin, that's just an example. But say a giant cucumber or radish, anything like that. I'm talking about the kinds they have at state fairs where they have a carrot that weights 10 lbs or something.

Do you need special seeds that come from other giant plants? Or can any plant grow a giant vegetable with the right care? What do I do to get a plant to give me oversized vegetables and fruit?