Sprinkler

The Sprinkler is a block that increases growth of plants in an area around it. When placed it starts off inactive, but you simply need to right click it to get it started.

It's made using normal bricks, iron bars and a redstone torch. The basic Sprinkler sprays water in a 3x3 area with it in the centre, and all crops in that area have their growth increased.

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The second tier of Sprinkler does not require the first tier, instead it replaces the bricks in the recipe with Withered Brick. The tier 2 Sprinkler has a much greater area than the first one, reaching all the way out to 7x7 with it at the centre.