This article is about the summoning item. For the junk item, see Seaweed (Junk)
The Seaweed can rarely be found in Ivy Chests. Using this item with the right mouse button will summon the Pet Turtle to follow the player as a passive pet. When the Turtle is seen flying through the wall to its owner a propeller is spinning on top of its shell.
This can, extremely rarely, be found in an ocean chest.