lol bro ive been thru this be4.. you should just put a small treehouse up there and cover it with a ghillie suit
Okay wait, lemme get this right. When you checked on it, the pot was there with the soil and all, but the plant was gone? Or was the pot gone too? If the pot was still there with the soil and all, it probably was an animal... Check the soil for a little root ball, if its in there then it was deffinatly an animal (or a dumbass that killed it trying to steal it ).
Thats the most awsome idea for hiding weed i have ever seen i'm half temted to try that now, no one would ever think to look up rather than down!