Fiery Seed

Fiery Seeds are instant-use plants that produce a large fire around them and then produce a fire plant.

Overview
When the Fiery Seed is planted, it will summon a large fire that covers a 3x3 radius. This fire deals 1 damage point and catches all zombies on fire, meaning that they will continue to take 1 damage point every second. Once the fire subsides, a fire plant (Fire Peashooter, Torchwood, Pepper-pult, etc.) will have taken the Fiery Seed's place.

Fiery Seed is loosely based off of a pepper seed, known for being spicy and "hot."