Level 1-3

Level 1-3 is the third level in Plants vs. Zombies and Plants vs. Zombies: Journey to the West. It is the third Day level. This level introduces the Conehead Zombie, a tougher variant of the basic Zombie. When the level is finished for the first time, the player unlocks unlocks the Wall-nut, the first defensive plant in the arsenal.

Difficulty

 * The only true difference between Levels 1-2 and 1-3 is that Conehead Zombies and a few more regular zombies appear.
 * Cherry Bombs can be used on zombies like Conehead Zombies and the final wave, since the game attempts to overwhelm the player. Despite that, the level will last quickly, and Cherry Bomb has a very slow recharge speed, and with that, costs the most amount of sun. However, Cherry Bombs can instantly clear the final wave the first time around and later on, can destroy infinite groups of zombies at once. This level, however, is beatable without the Cherry Bomb.
 * Lawn mowers will help if the player cannot beat the level.

Strategies
Plant two or three columns of Sunflowers closest to the house, then three Peashooters in front. Use Cherry Bombs if you are struggling.

Trivia

 * This is the only level in which a Cherry Bomb can completely take out a wave of zombies.
 * This is the first level that uses "Ready, Set, PLANT!" at the beginning of the level.