The Tall-nut is a tougher version of the Wall-nut. Tall-nuts also prevent Pole Vaulting Zombies, Dolphin Rider Zombies, and Pogo Zombies from jumping, although Ladder Zombies can still climb over them, Gargantuars, Zombonis, and Catapult Zombies can squash them like other plants and Balloon Zombies fly over it still without difficulty and Digger Zombies can tunnel under it.