Board Thread:Plants vs. Zombies 2: It's About Time/@comment-24671402-20140315172259/@comment-24729483-20140320222611

A power tile is a power tile. Thats all you need to know.

I guess it could be some kind of boost, and it must be useful, because there is even a plant dedicated to the creation of them. Maybe its a different form of plant food,you know, because theres some kind of purple plant food thing in the game's files.