This article describes a custom creation, custom theme, or other fan material, made by a Brickipedia contributor. It has never been, is not, and will not be officially released.
Iceberg Lettuce is a plant in Plants vs. Zombies 2: It's About Time. It costs 0 sun and freezes a zombie that steps on it for approximately 10 seconds.
Don't get lost staring into Iceberg's adorably cute eyes. If you do, it will be your last step... but only if you're a zombie.