Unlike most games, creating a Plants Vs Zombies strategy guide is not a simple and straightforward matter. While other, similar games organize the gameplay in a scene by scene fashion, Plants v. Zombies is an entirely different matter.
Success in PVZ involves a number of strategies being used in tandem with each other. This guide should give you some insight into the best ways to use each plant at your disposal as well as giving you an in-depth look at the strengths and weaknesses of each different type of minion in the zombie horde.
Plants
Peashooter
Sunflower
Cherry Bomb
Chomper
Puff Shroom
Fume Shroom
Grave Buster
Hypno Shroom
Scaredy Shroom
Doom Shroom
Squash
Threepeater
Torchwood
Plantern
Split Pea
Pumpkin
Kernel Pult
Garlic
Cattail
Cobcannon
Imitator
Zombies
Zombie
Flag
Conehead
Pole Vaulting
Buckethead
Newspaper
Screen Door
Football
Dancing
Backup Dancing
Ducky Tube
Snorkel
Zomboni
Dr. Zomboss
There are more zombies than just these but that covers the main ones, for the most part.
While there will never be a definitive guide to PVZ, this should serve as a helpful set of basic tips for dealing with the various zombies found in the game as well as how to use the wide variety of available plants. If these tips are combined with some teamwork and basic common sense, you should find yourself both well equipped and prepared for most of what you will encounter here.