I recently moved in the fall to a new house (just outside Oshkosh, WI) and have been cleaning up the yard the last few weekends to get ready for some planting. There was a very overgrown, unmaintained flower garden area that I uncovered. Within it are a few dozen of these things. My husband says they look like pine cones with roots, but they're hard and remind me of a pineapple. They've just recently started growing, which is the pictures I've attached. I know very little about plants/flowers (I'm a growing green thumb), so I'm not sure what these are. Any help would be appreciated! Thanks.