Weird zucchini growth, what’s happening?

Question

I have some zucchini growing on my plants that look strange. The blossom end is not rotting, but is growing strange. Instead of the blossom falling off and leaving a little brown “bellybutton”, it just grows fatter and looks like another zucchini is developing from the first. Kind of like uncontrolled cell growth. I looked online but all I can find is blossom rot, which it isn’t. Thanks for any help!

Answer 1

This is sometimes referred to as twin or double fruitng. While not common, it does happen now and then. It's a condition where two or more blossoms, in this case female, fuse together and the fruit essentially grows as a siamese twin fruit.