Sunflower

Sunflowers are tall, yellow flowers that can stop the spreading of Corruption. This is their only known use in the game so far. They spawn in the forest biome, often in large groups.

The Sunflower can only be placed on a grass surface that is at least 2 blocks wide, and the surface can not have anything else growing on it.

They can be broken by hitting the block the flower sits on with a Pickaxe. Sunflowers also have the ability to spawn more sunflowers in a small area, but the chance is very low. This will only occur on grassy dirt blocks.

They can be bought from the Dryad for 2 silver coins.