Garden Dioxide

Difficulty: Easy-Medium

Garden Dioxide is an achievement in Plants vs. Zombies: Garden Warfare. To get it, the player must vanquish two players with a single ZPG.

Strategies
Blindly firing at the ground in the middle of a group of plants will likely get two or more vanquishes, but if you aim for a specific plant in a group, that plant will get vanquished from the direct hit and the splash will likely vanquish one or more of the other plants, giving you a greater chance of earning the achievement.