gourds arnt fruits good perception though
sorry, but if its not a fruit, then what would you call it? the definition of a fruit is a structure on a plant, that contains seeds, to my mind a gourd fits that decription.
anyway back to my original thought
pumpkins were in oblivion as a potion ingredient, i don't see how they would implement it as an ingredient and as a plantable material,
unless they give you seeds and pumpkin when you harvest... i may have just answered my own question