Today we discovered a new plant on our property. A red spider lily, lycoris radiata. It belongs to the amaryllis family and is grown from bulbs. The only problem with this is the fact we've never heard of the red spider lily before, have never seen one before, and in over 30 years we certainly didn't plant any such bulbs where it's currently growing. Can anyone explain how a bulb-based plant can just spontaneously grow without a bulb?