Roar-idula

He has an ability to make sound waves.This is a plant that is really great when wall-nut or tall-nut is planted in front of him.

Almanac Entry
He is one of the plants that have a beautiful voice.. He like to sing when there isn't a zombie around but when there is ,he gets really nervous and only produce Sound waves .... "And your gonna hear me Roooooar rooooar roooooar"  says Roar-idula when there isn't any zombies...

Healing sound

 * This heals the plants
 * It is Common

Poisoning sound

 * When a zombie is hit, the zombie will deal 1 damage every 1 sec
 * It is Uncommon

Attacking sound

 * Zombies within the range will deal 3 damage
 * It is Common

Doom sound
(Note: if anyone have any suggestion about the sound waves comment it)
 * This is the only sound that covers all areas
 * When this is done, Roar-idula will be gone
 * All zombies will lose conciousness for 15 sec except the boss zombies
 * It is extremely rare

Strategy
You should put a wall-nut in front of him since his life is too small and he makes healing wave commonly.Also if possible put him in the mid of the lane so he can cover all of the zombies since his range is half of the lane.

Trivia

 * He came from the plant called the RORIDULA
 * When you plant him there would be an extra humming song to the background music.(I will post it later on.)