can't plant it in the water and even tried raising a tile out in the sea far away from influence and deeds and still got the nothing happens there is enemy territory or deeds close by.
this is the description of it
[22:01:35] A blue colored wooden stick with a bunch of green leaves in a fan shape on one end. Symbols indicate that if you plant it at sea, an island will emerge! Ql: 97.0, Dam: 0.0.