Hey whats this business with keeping a mother plant for cloning. Can someone explain this to me? Do you keep the mother in Veg? Also how long can a good mother last??? Does it ever die or stop growing??? Would I have to keep trimming the roots of the mother in my system? becuase I figure If you keep a plant alive its roots must grow crazy long, how do people go about doing that mother/clone business, someone explain to me the process please.