Cordgrass

Cordgrass is found in [insert game here], obtained in [insert world here] in [insert level here].

Overview
Cordgrass lobs heaps of mud at zombies, which slow zombies down and makes them dirty. When a zombie is hit with mud enough times (around 14 times), the zombie is stuck to the ground with mud, and the zombie will stay there until it dies.

Also, Cordgrass can only be planted in water.

Strategy
Since Cordgrass is expensive, plant him at the back and pair him with cheaper plants. If you want to use Cordgrass in a stage with no water, you'll have to use a plant that allows you to plant aquatic plants on land.

Suburban Almanac Entry
Cordgrass

Cordgrass lobs mud that can slow and stick zombies to the ground.

DAMAGE: Heavy

RANGE: Straight

RECHARGE: Fast

Despite what you may think, Cordgrass is a germaphobe. "Do you think I LIKE my job? No! What self-respecting plant would want mud all over you! Disgusting!"

Plant Food
When fed plant food, Cordgrass lobs heaps of mud all over the screen, damaging and slowing anyone that gets hit.

Trivia

 * In real life, cordgrass grow in swampy areas, hence his ability to throw mud.