Board Thread:Spoilers!/@comment-6175354-20140206041335/@comment-5821891-20140324042532

Or because the tower was in Sherwood which we must assume was under Cora's shield. I'm pretty sure Robin Hood said the plant grew in the south of Sherwood or something like that. Also the fact that a plant was involved at all is a reference to the original story. Remember Gothel was upset about vegetables from her garden being stolen, notably Rampion which in German is Rapunzel.