Huge mushrooms are generated structures.
A huge mushroom will not grow above the height limit.
A huge mushroom's height will normally be between 5 and 7 blocks inclusive, but have a 1⁄12 chance to generate 2x as high.
To grow, the lowest four blocks of the stem (i.e. the three blocks above the small mushroom being grown) must be air or leaves, and a 7×7×(height−3) region above that must similarly be clear of anything except air or leaves. The block under the huge mushroom's stem must be dirt, coarse dirt, grass block, podzol or mycelium.
Huge brown mushrooms
Huge brown mushrooms consist of a single stalk in the center, with a 7×7 canopy of brown mushroom blocks at the top with the corners missing.
Due to the space requirement matching the size of the canopy at the top, it is possible for a huge brown mushroom to grow with its canopy directly touching a mushroom next to it.
Huge red mushrooms
Huge red mushrooms, like their brown counterparts, have a single stalk in the center, but a different canopy, composed of five 3×3 slabs of red mushroom blocks arranged above and around the stalk, forming a 'dome'. Note that the space requirements do not require that the area occupied by lower part of the 'dome' is clear of other blocks. Partial blocks such as slabs will be replaced, while full blocks will remain unchanged.
Due to the shape of the dome, the shortest huge red mushrooms can grow such that their domes touch despite the dome being smaller than the full space requirement.
|June 14, 2011||Notch showed a picture of a Beta 1.7 change-list. Although it was completely blurred out and was at first thought of as a joke, Notch later stated that one of the pictures with the new lighting system and the change list had a secret in them.|
|One place where people discussed it was on the Minecraft Forums, where it was discovered that the tabs at the top of the change list, which were partly covered, could be decoded based on the one pixel tall pattern available in the image.|
|After a user named "tmcaffeine" successfully decoded the image, the tabs read: ExperienceOrb.java, changelist.txt, Level.java, Tile.java, HugeMushroomTile.jav(a?), HugeMushroomFeature.(java?), RandomLevelSource(cut).|
|This led people to believe that huge mushrooms would be added, and indeed, later on Notch revealed a screenshot on Google+ in which two huge mushrooms could be seen as well as a village.|
|1.8||1.8-pre1||Huge mushrooms were added.|
|They did not generate naturally, but could be planted by the player by using bone meal on a red or brown mushroom planted on grass or dirt.|
|1.0.0||The mushroom island biome was added, which naturally generates huge mushrooms.|
|1.7.2||The roofed forest biome was added, which naturally generates huge mushrooms.|
|1.10||16w20a||Huge mushrooms can now generate or grow much taller, matching the height from Pocket Edition.|
|Pocket Edition Alpha|
|0.9.0||build 1||Added huge mushrooms.|
|0.10.0||build 1||Huge mushrooms can now generate in swamps.|
|TU5||CU1||1.0||Patch 1||Added huge mushrooms.|
|TU43||CU33||1.36||Patch 13||Huge mushrooms can now generate or grow much taller, matching the height from Pocket and computer editions.|
- All huge mushrooms have exactly 45 blocks besides the stalk, so on average, you can get 13.5 mushrooms from each huge mushroom.
- Red mushrooms are rarer than brown mushrooms, but this is not the case for huge mushrooms.