Farm Fortress is a persistent tower defense/farming/action/multiplayer game where you plant exotic plants and defend these against hungry mutated monsters, corporate robots and other players. Plants grow regardless if you're playing or not. You can design your fortress with walls, sentries and traps and help defend it yourself. Buy new equipment, attack other players or gather allies to help defend your fortress.
If you have planted flowers on your land (and you should!) you will soon notice that they grow. When a flower is near fully grown it is at it’s biggest and will start to sparkle now and then. By then it is time to harvest. Harvest plants with the machete. Harvesting early in the growth phase will yield much less money. After harvest, flowers starts over from the first growth stage.