This plant sprouted up in my spider plants pot about two weeks ago and has grown really fast. It looks like corn?!? Corn is hauled regularly past the window that this pot is located, so it's not impossible. But it doesn't look like any of the other plants I have. I did repot it with Miracle Grow All Purpose Potting Mix but that shouldn't have random seeds in it... Any thoughts??

I tried to move the spider out of the shot as much as I could...