Tree-54

Tree-54 is a plant solely suited for an anti-armor role. Although its projectiles are high damage, they are inaccurate and often miss smaller targets such as regular zombies and other "infantry" zombies. However, Zombonis and other similar armored zombies present a bigger target, so the Tree-54's shells will be more effective. The shells can also be used for suppression fire in waves, since the large amounts of zombies will guarantee a lot of splash bonuses.

Usage:
Despite the Tree-54's relatively high health, it is best to place it behind the front lines due to its slow rate of fire and inaccuracy. The inaccurate fire of the Tree-54 can be negated by placing a Wall-nut or variants in front, therefore forcing the zombies the stop and making them a much easier target.

When plant food is used on the Tree-54, it fires a volley of shells that, apart from damaging the zombies, also creates a 10-second smokescreen that prevents all zombies from attacking or moving.

Background
The Tree-54's name is a pun on the well-known T-54 tank series.