Corrupt Seeds

Corrupt Seeds are an item obtained from Eye of Cthulhu, and can be purchased from the dryad on blood moons. They usually drop in quantities of 1-5, and can be used to create a Corrupted area when planted on plain dirt blocks (Without normal grass), which will gradually spread and corrupt nearby dirt or grass over time. These may have further purpose in recipes for the future. If planted near spawn or a bed, the corruption will be placed 200-300 blocks away from it. These will not spawn Chasms, but they do spawn Eater of Souls.

You can create a small, contained area of Corruption to farm the vile mushrooms that grow on it.

For corrupt seeds to count as real corruption, more than 50 blocks of Ebonstone is needed near it to make it a vaild 'corrupt' area.