Bone Meal

Bone meal is a material made from the bones of killed skeletons. It can be used as dye as well as a fertilizer for most plants.

Fertilizer

 * Seeds, Potatoes, Carrots: When applied to the plant, it will accelerate its growth, either moving it to the next stage of growth or final stage depending on its current growth and amount of bone meal used.
 * Melon and Pumpkin Seeds: When applied to the planted stem, the stem will grow to a later stage of development, and enough bone meal can grow a stem to full size. Bone meal only affects the stem itself; melons and pumpkins sprout from adult stems at a fixed rate which cannot be modified.
 * Saplings: When applied, the bone meal is consumed and the sapling may grow instantly into a tree, provided it has enough space, light, and luck. Multiple uses of bone meal are necessary to achieve this.
 * Grass Blocks: When applied to a grass block, the bone meal is consumed and tall grass, and usually a few flowers, form in a random pattern in a 10×10 area centered on the northwest corner of the grass block (the corner with the lowest X and Z values). This can be an effective method of gathering wheat seeds. Does not work on dirt. The flowers that appear are dependent on the biome, meaning that in order to obtain specific flowers, the player must travel to biomes where the flowers are found naturally. See flowers for more information.
 * Mushrooms: When applied to a mushroom that is planted on dirt, it will eventually grow into a huge mushroom after enough uses. The sudden growth may cause nearby players to take suffocation damage if they occupy the space it needs to grow.
 * Cocoa: When applied to planted cocoa plants, the bone meal is consumed and the cocoa plant grows instantly, ready to be harvested for cocoa beans.

Bone meal does not work on cacti, sugar cane, vines or Nether Wart.

Trivia

 * Bone meal's fertilizing properties make it ideal for growing large quantities of trees or wheat in tight spaces very quickly.
 * Using bone meal over grass blocks immediately grows tall grass along with the flowers for that biome.
 * Prior to version 1.7.2, when bone meal is used on a grass block, each new plant has a 90% chance of becoming tall grass. Each plant that is not tall grass has a 1 in 3 chance of becoming a rose (now known as a poppy), or a 2 in 3 chance of becoming a dandelion.
 * Using bone meal to fertilize, harvest and replant seeds is a fast way of creating a large number of seeds at the expense of bone meal instead of harvesting tall grass. This method also produces wheat and can be used to replace traditional farming methods.
 * There is a crafting recipe that uses white wool and bone meal. It is useless, however, because it outputs white wool, thus wasting bone meal.
 * Tall grass planted with bone meal in an area already populated with grass blocks can force grass to appear up to 6 blocks away from where you originally used it. The chance of any plant growing on the block decreases with distance from the block which bone meal was used on, the chance becoming very small at 6 blocks distance.
 * Bone meal can be used on the sides or bottom of a grass block, as well as on a grass block with plants already on top of it.
 * Regardless of if it succeeds in fertilizing, bone meal makes green sparkles. However, like smoke from a torch, the sparkles only appear if the player has particles set All or Decreased.