Potaton

Potaton is a premium plant in Plants vs. Zombies 2. When planted, it will start to grow until it explodes. After exploding, it can regrow and explode again.

Its explosion does massive damage to zombies in a 3x3 area. It can also be tapped to explode early.

Almanac entry
Potatons start to grow bigger, and eventually explode and start to grow again.

Potaton has been trying to lose weight, but exploding himself and a bunch of zombies is the only way to do it. He can't afford gyms, and he can't afford those lose-weight classes. Bummer.

Plant Food ability
This can only happen if you use Plant Food before it explodes.

Potaton will make a big explosion, affecting most of the lawn. The damage it does during its Plant Food is huge.