Will pumpkins and winter squash cross pollinate?
I have an interesting and rather weird-looking hybrid growing in my compost pile right now. It appears to be a cross between a small sugar pumpkin and a spaghetti squash. This makes sense, because spaghetti squash is technically a kind of pumpkin. It has 3 fruit on it: They are mostly yellow (like spaghetti squash) but with green bottoms (like an unripe pumpkin). They are almost cylindrical in shape with nearly flat bottoms. I am not sure if I will be adventurous enough to cook one, but I will definitely cut into it and see if it has a spaghetti-like flesh! Anyway, the general to your question is yes, if they are from the same botanical species, but otherwise, no.