Citrrus

Citrrus is a plant that explodes in a 4x5 area but ends up giving a little fog.

Strategy
Citrrus explodes in a 4x5 area. They are very helpful during a final wave. But it gives a little fog. So when you use Citrrus, ALWAYS pick Blover. Like in PVZ1, Blover will clear the fog away.

Trivia

 * Citrrus is a mix of the words, Citrus and Cirrus, a type of cloud.
 * The owner/creator of this plant sometimes accidentally misspells "Citrrus" as "Cittrus".