I originally obtained the singing sunflower before the battle pet system which appeared in mists of pandaria and was just a companion prior to the expansion.
The singing sunflower battle pet companion I obtained at south shore in a mini game. Which I believe was based on a game called plants vs zombies. I might be wrong on that as I have never played plants vs zombies.
The singing sunflower is a very happy companion with a beaming smile on his face and a cute plant shuffle walk.
He occasionally produces visual effects and you can hear him saying a few different phrases including
- there's a zombie on your lawn
- doo bee doo bee doo bee do beee
- bah be bop ba do bop....
It has a cute happy voice a beaming smile and is a rare companion in world of Warcraft mists of pandaria