There is much to say on any species. As an overview, it often wanders in a sleepwalking state, re-rooting itself in new places to find varied nutrients. During that time, its feet, which are more properly condensed roots, unravel for that purpose.

Although it may enjoy eating and does posses a digestive system, only supplemental nutrients must be given, though this may be presented in the individual's favored flavor.

I believe this is a sufficient start.