Grass and mycelium can spread to dirt blocks which are submerged under general water.
Grass Blocks placed underwater will not become dirt.
Grass grows underwater
Grass blocks spread grass to dirt blocks underwater
dirt become grass block in water
Grass Grows Underwater
Grass Underwater Spreading
Grass spreads underwater
Bug with textures of Conduit, bug with snow layer on grass with snow layer, bug with spawning grass underwater.
Grass blocks spread underwater
the grass can grow under water
Grass is growing underwater
Mycelium and water issue
Grass in underwater
Grass and mycelium can spread to dirt blocks which are submerged under hacked water
Grass and mycelium don't decay underwater