I live in Wisconsin and my husband and I just bought a new house. Behind the garage, after clearing a wood pile, we found several seedlings that looked as if they were growing out of discarded lemons. (We found this hilarious, because lemons do not grow under normal conditions in Wisconsin.)
I re-potted them and moved them into the house, as spring weather here is tempermental at best, and they no longer had the cover of the woodpile. I have quite the green thumb, and a co-worker told me they were pretty easy plants to care for.
However they were not thriving and are now looking a bit sickly, so I looked up how to care for a lemon tree online. Lo and behold, the leaves tell me they are not lemons at all. What am I growing?? It is currently about 14 inches tall and would probably still be growing, given the season, if it wasn't sick.
I don't think it is a bulb, the base of the plant was mushy like it had been a fruit (apparently not a lemon, but it was yellow). The only flowers currently in season are very early crocuses.
Below are pictures of them upon first finding them and throwing them into the pot, a picture of them propped up against the house for support while looking sick, and a picture of the yellow, fist-size...root ball, for lack of a better term at the moment.