Due to their capacity for ambulation, bulbs have long been believed to be the unmatured forms of treants. This hypothesis, however, has been recently disproved by a team of dedicated naturalists who, after capturing several of the seedkin and observing them for two score years in a controlled environment, documented no further growth from their original state. The bulb's ability to walk appears simply to be a trait developed to allow the seedkin access to richer soils.